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Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work. |
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#1
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Gold
Forgive me. I am abysmally ignorant about this.
I need to know how much to pay for a small bit of gold. I'm asking for a piece, a cylinder .1875" diameter x .1875" long. Karat weight is negotiable: 18 karat, 24 karat. Doesn't matter. Price will probably differ with each, and I understand that. I can google the spot price of gold and calculate it out, but I have no idea how much a piece of gold this size weighs. Archimedes wasn't my best friend in high school. Steel prices are bad enough, and titanium, whoo boy. But I am totally lost when dealing with truly precious metals. Gold-mongers in my experience are notoriously reticent with a little thing called honesty, so I'd like to know what to expect as a reasonable price. Little help here? Ed? Where are you when I need you? -Frank -- Here's some of my work: http://www.franksknives.com |
#2
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Gold
What exactly is the proposed transaction, and how well do you know the
person selling this piece of "gold"? Does this person look a little bit like he was from India? i On 2010-03-11, Frank J Warner wrote: Forgive me. I am abysmally ignorant about this. I need to know how much to pay for a small bit of gold. I'm asking for a piece, a cylinder .1875" diameter x .1875" long. Karat weight is negotiable: 18 karat, 24 karat. Doesn't matter. Price will probably differ with each, and I understand that. I can google the spot price of gold and calculate it out, but I have no idea how much a piece of gold this size weighs. Archimedes wasn't my best friend in high school. Steel prices are bad enough, and titanium, whoo boy. But I am totally lost when dealing with truly precious metals. Gold-mongers in my experience are notoriously reticent with a little thing called honesty, so I'd like to know what to expect as a reasonable price. Little help here? Ed? Where are you when I need you? -Frank |
#3
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Gold
"Frank J Warner" wrote in message news:100320101820157778%warnerf@veriSPAMMERSDIEzon .net... Forgive me. I am abysmally ignorant about this. I need to know how much to pay for a small bit of gold. I'm asking for a piece, a cylinder .1875" diameter x .1875" long. Karat weight is negotiable: 18 karat, 24 karat. Doesn't matter. Price will probably differ with each, and I understand that. I can google the spot price of gold and calculate it out, but I have no idea how much a piece of gold this size weighs. Archimedes wasn't my best friend in high school. Steel prices are bad enough, and titanium, whoo boy. But I am totally lost when dealing with truly precious metals. Gold-mongers in my experience are notoriously reticent with a little thing called honesty, so I'd like to know what to expect as a reasonable price. Little help here? Ed? Where are you when I need you? -Frank -- Here's some of my work: http://www.franksknives.com If you mean *this* Ed, I'm not knowledgeable about buying gold. You want Harold Vardos. I haven't seen him for a while; maybe someone has his e-mail address. I'm working on a deadline right now, or I'd try to help more, but I can help you with the weight. First, gold is usually weighed in troy ounces, which equal approximately 31.10 grams (480 grains). The avoirdupois ounces we use for everything else equal 28.35 grams. The density of gold is 19.3 grams/cc. One cubic inch equals 16.387064 cc. From those equivalents, you can figure out the weight of gold you need, in troy ounces, avoirdupois ounces, or grams. If I wasn't busy I'd do the calculations. BTW, my guess is that you'll have to swage that shape yourself, from a piece of gold wire or whatever. That shouldn't be hard to do but you'll need a block of steel with a .1875 in. hole in it and a piece of steel rod of the same diameter -- and a hammer. g Good luck. I'll get back to this thread when I can and see what remains to be calculated. -- Ed Huntress |
#4
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Gold
Frank J Warner wrote:
Forgive me. I am abysmally ignorant about this. I need to know how much to pay for a small bit of gold. I'm asking for a piece, a cylinder .1875" diameter x .1875" long. Karat weight is negotiable: 18 karat, 24 karat. Doesn't matter. Price will probably differ with each, and I understand that. I can google the spot price of gold and calculate it out, but I have no idea how much a piece of gold this size weighs. Archimedes wasn't my best friend in high school. Steel prices are bad enough, and titanium, whoo boy. But I am totally lost when dealing with truly precious metals. Gold-mongers in my experience are notoriously reticent with a little thing called honesty, so I'd like to know what to expect as a reasonable price. Little help here? Ed? Where are you when I need you? -Frank If your looking at a solid piece that size your looking at about 23 bucks worth of gold for 10K and about 50 for 24K. BUT if this is something that you need NOW you will likely end up making it yourself. That isn't a common size in wire gold. or in bar stock. Your best option would really be to buy a large mens ring or two from a pawn shop or even a Wal~Mart. Then make a over-sized mold and pour it yourself. Then turn to fit. That would be easier and MUCH cheaper than special ordering it. -- Steve W. |
#5
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Gold
And baring that and needing it made for you - I know of someone
that can do it for you. It becomes a work of art to get something made. Martin Steve W. wrote: Frank J Warner wrote: Forgive me. I am abysmally ignorant about this. I need to know how much to pay for a small bit of gold. I'm asking for a piece, a cylinder .1875" diameter x .1875" long. Karat weight is negotiable: 18 karat, 24 karat. Doesn't matter. Price will probably differ with each, and I understand that. I can google the spot price of gold and calculate it out, but I have no idea how much a piece of gold this size weighs. Archimedes wasn't my best friend in high school. Steel prices are bad enough, and titanium, whoo boy. But I am totally lost when dealing with truly precious metals. Gold-mongers in my experience are notoriously reticent with a little thing called honesty, so I'd like to know what to expect as a reasonable price. Little help here? Ed? Where are you when I need you? -Frank If your looking at a solid piece that size your looking at about 23 bucks worth of gold for 10K and about 50 for 24K. BUT if this is something that you need NOW you will likely end up making it yourself. That isn't a common size in wire gold. or in bar stock. Your best option would really be to buy a large mens ring or two from a pawn shop or even a Wal~Mart. Then make a over-sized mold and pour it yourself. Then turn to fit. That would be easier and MUCH cheaper than special ordering it. |
#6
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Gold
Frank J Warner wrote:
Forgive me. I am abysmally ignorant about this. I need to know how much to pay for a small bit of gold. I'm asking for a piece, a cylinder .1875" diameter x .1875" long. Karat weight is negotiable: 18 karat, 24 karat. Doesn't matter. Price will probably differ with each, and I understand that. I can google the spot price of gold and calculate it out, but I have no idea how much a piece of gold this size weighs. Archimedes wasn't my best friend in high school. Steel prices are bad enough, and titanium, whoo boy. But I am totally lost when dealing with truly precious metals. Gold-mongers in my experience are notoriously reticent with a little thing called honesty, so I'd like to know what to expect as a reasonable price. Little help here? Ed? Where are you when I need you? -Frank ~Well, you need o know a working gold smith. He will have an account with his metal supplier and can get a price for a piece of wire usually a couple of inches long. its just gone 6am here in the Uk and my gold supplier opens at 8. My UK phone calls are free so ill have a price for you shortly. the minimum length will be 1 inch in 18 ct. It will be the nearest size bigger than your spec. Also the spot price for gold is only the starting point for pricing. and thats in kilo bars and up in weight. On top is always the manufacturing cost, thecheapest is casting grain the most expensive is drawn seamless tube. Fine gold will be too soft to turn even if you have a watchmakers lathe. Your sure to have Cookson metals in the USA somewhere, and an email to them will get a prompt reply. will write again soon. ted Frater Dorset in the UK.. |
#7
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Gold
On Mar 10, 4:20*pm, Frank J Warner
wrote: Forgive me. I am abysmally ignorant about this. I need to know how much to pay for a small bit of gold. I'm asking for a piece, a cylinder .1875" diameter x .1875" long. Karat weight is negotiable: 18 karat, 24 karat. Doesn't matter. Price will probably differ with each, and I understand that. I can google the spot price of gold and calculate it out, but I have no idea how much a piece of gold this size weighs. Archimedes wasn't my best friend in high school. Steel prices are bad enough, and titanium, whoo boy. But I am totally lost when dealing with truly precious metals. Gold-mongers in my experience are notoriously reticent with a little thing called honesty, so I'd like to know what to expect as a reasonable price. Little help here? Ed? Where are you when I need you? -Frank -- Here's some of my work:http://www.franksknives.com After looking at your knives I think you should make friends with a goldsmith. A goldsmith that likes knives could become a very good friend. What you need could be made out of scrap. Why that much precision? What kind of timeline? Karl |
#8
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Gold
Frank J Warner wrote:
Forgive me. I am abysmally ignorant about this. I need to know how much to pay for a small bit of gold. I'm asking for a piece, a cylinder .1875" diameter x .1875" long. Karat weight is negotiable: 18 karat, 24 karat. Doesn't matter. Price will probably differ with each, and I understand that. I can google the spot price of gold and calculate it out, but I have no idea how much a piece of gold this size weighs. Archimedes wasn't my best friend in high school. Steel prices are bad enough, and titanium, whoo boy. But I am totally lost when dealing with truly precious metals. Gold-mongers in my experience are notoriously reticent with a little thing called honesty, so I'd like to know what to expect as a reasonable price. Little help here? Ed? Where are you when I need you? -Frank Ok, Frank, Cookson in Birmingham UK quoted just now,4mm dia by 25mm long weight 4.86 grams in 18ct yellow cost without postage and VAT £104.15. You do your own exchange rate calculation and reduction to .2in piece length. hope this helps Ted. |
#9
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Gold
In article , Ed Huntress
wrote: "Frank J Warner" wrote in message news:100320101820157778%warnerf@veriSPAMMERSDIEzon .net... Forgive me. I am abysmally ignorant about this. I need to know how much to pay for a small bit of gold. I'm asking for a piece, a cylinder .1875" diameter x .1875" long. Karat weight is negotiable: 18 karat, 24 karat. Doesn't matter. Price will probably differ with each, and I understand that. I can google the spot price of gold and calculate it out, but I have no idea how much a piece of gold this size weighs. Archimedes wasn't my best friend in high school. Steel prices are bad enough, and titanium, whoo boy. But I am totally lost when dealing with truly precious metals. Gold-mongers in my experience are notoriously reticent with a little thing called honesty, so I'd like to know what to expect as a reasonable price. Little help here? Ed? Where are you when I need you? -Frank -- Here's some of my work: http://www.franksknives.com If you mean *this* Ed, I'm not knowledgeable about buying gold. You want Harold Vardos. I haven't seen him for a while; maybe someone has his e-mail address. Er, yes, sorry to have confused you with him. He helped me with a previous question about precious metals. I'm working on a deadline right now, or I'd try to help more, but I can help you with the weight. First, gold is usually weighed in troy ounces, which equal approximately 31.10 grams (480 grains). The avoirdupois ounces we use for everything else equal 28.35 grams. The density of gold is 19.3 grams/cc. One cubic inch equals 16.387064 cc. From those equivalents, you can figure out the weight of gold you need, in troy ounces, avoirdupois ounces, or grams. If I wasn't busy I'd do the calculations. BTW, my guess is that you'll have to swage that shape yourself, from a piece of gold wire or whatever. That shouldn't be hard to do but you'll need a block of steel with a .1875 in. hole in it and a piece of steel rod of the same diameter -- and a hammer. g Good luck. I'll get back to this thread when I can and see what remains to be calculated. Thanks, Ed. -Frank -- Here's some of my work: http://www.franksknives.com/ |
#10
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Gold
In article , Steve W.
wrote: Frank J Warner wrote: Forgive me. I am abysmally ignorant about this. I need to know how much to pay for a small bit of gold. I'm asking for a piece, a cylinder .1875" diameter x .1875" long. Karat weight is negotiable: 18 karat, 24 karat. Doesn't matter. Price will probably differ with each, and I understand that. I can google the spot price of gold and calculate it out, but I have no idea how much a piece of gold this size weighs. Archimedes wasn't my best friend in high school. Steel prices are bad enough, and titanium, whoo boy. But I am totally lost when dealing with truly precious metals. Gold-mongers in my experience are notoriously reticent with a little thing called honesty, so I'd like to know what to expect as a reasonable price. Little help here? Ed? Where are you when I need you? -Frank If your looking at a solid piece that size your looking at about 23 bucks worth of gold for 10K and about 50 for 24K. BUT if this is something that you need NOW you will likely end up making it yourself. That isn't a common size in wire gold. or in bar stock. Your best option would really be to buy a large mens ring or two from a pawn shop or even a Wal~Mart. Then make a over-sized mold and pour it yourself. Then turn to fit. That would be easier and MUCH cheaper than special ordering it. I have done that in the past when I needed gold to embellish a knife. It becomes prohibitively expensive to buy ready-made jewelry. You're not only paying for the gold, you're paying for the jeweler's time a a hefty markup. I was hoping to contact a local amateur goldsmith on craigslist or something who could sell me the gold at the going rate plus a reasonable fee for his or her services. I've allowed $50-$100 for this, while a man's gold band with the same amount of metal from a jeweler runs upwards from $250 or so. -Frank -- Here's some of my work: http://www.franksknives.com/ |
#11
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Gold
In article
, " wrote: On Mar 10, 4:20*pm, Frank J Warner wrote: Forgive me. I am abysmally ignorant about this. I need to know how much to pay for a small bit of gold. I'm asking for a piece, a cylinder .1875" diameter x .1875" long. Karat weight is negotiable: 18 karat, 24 karat. Doesn't matter. Price will probably differ with each, and I understand that. I can google the spot price of gold and calculate it out, but I have no idea how much a piece of gold this size weighs. Archimedes wasn't my best friend in high school. Steel prices are bad enough, and titanium, whoo boy. But I am totally lost when dealing with truly precious metals. Gold-mongers in my experience are notoriously reticent with a little thing called honesty, so I'd like to know what to expect as a reasonable price. Little help here? Ed? Where are you when I need you? -Frank -- Here's some of my work:http://www.franksknives.com After looking at your knives I think you should make friends with a goldsmith. A goldsmith that likes knives could become a very good friend. What you need could be made out of scrap. Why that much precision? What kind of timeline? Karl Unfortunately I live in a very small town with not too many craftsmen like that, although I'm looking. The local jewelers are less than helpful. They won't even talk to me unless I want to buy a bag of Krugerrands or something. This is just a thumb stud for a lady's folding knife. Tiny bit of gold with an opal cabochon inset. -Frank -- Here's some of my work: http://www.franksknives.com/ |
#12
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Gold
In article ,
Martin H. Eastburn wrote: And baring that and needing it made for you - I know of someone that can do it for you. Email at my website is good, Martin, if you know someone. Where is he located? It becomes a work of art to get something made. This is the simplest gold part I can imagine. Shouldn't be difficult to have something like this made. -Frank Martin Steve W. wrote: Frank J Warner wrote: Forgive me. I am abysmally ignorant about this. I need to know how much to pay for a small bit of gold. I'm asking for a piece, a cylinder .1875" diameter x .1875" long. Karat weight is negotiable: 18 karat, 24 karat. Doesn't matter. Price will probably differ with each, and I understand that. I can google the spot price of gold and calculate it out, but I have no idea how much a piece of gold this size weighs. Archimedes wasn't my best friend in high school. Steel prices are bad enough, and titanium, whoo boy. But I am totally lost when dealing with truly precious metals. Gold-mongers in my experience are notoriously reticent with a little thing called honesty, so I'd like to know what to expect as a reasonable price. Little help here? Ed? Where are you when I need you? -Frank If your looking at a solid piece that size your looking at about 23 bucks worth of gold for 10K and about 50 for 24K. BUT if this is something that you need NOW you will likely end up making it yourself. That isn't a common size in wire gold. or in bar stock. Your best option would really be to buy a large mens ring or two from a pawn shop or even a Wal~Mart. Then make a over-sized mold and pour it yourself. Then turn to fit. That would be easier and MUCH cheaper than special ordering it. -- Here's some of my work: http://www.franksknives.com/ |
#13
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Gold
Frank Warner wrote:
In article , Steve W. wrote: Frank J Warner wrote: Forgive me. I am abysmally ignorant about this. I need to know how much to pay for a small bit of gold. I'm asking for a piece, a cylinder .1875" diameter x .1875" long. Karat weight is negotiable: 18 karat, 24 karat. Doesn't matter. Price will probably differ with each, and I understand that. I can google the spot price of gold and calculate it out, but I have no idea how much a piece of gold this size weighs. Archimedes wasn't my best friend in high school. Steel prices are bad enough, and titanium, whoo boy. But I am totally lost when dealing with truly precious metals. Gold-mongers in my experience are notoriously reticent with a little thing called honesty, so I'd like to know what to expect as a reasonable price. Little help here? Ed? Where are you when I need you? -Frank If your looking at a solid piece that size your looking at about 23 bucks worth of gold for 10K and about 50 for 24K. BUT if this is something that you need NOW you will likely end up making it yourself. That isn't a common size in wire gold. or in bar stock. Your best option would really be to buy a large mens ring or two from a pawn shop or even a Wal~Mart. Then make a over-sized mold and pour it yourself. Then turn to fit. That would be easier and MUCH cheaper than special ordering it. I have done that in the past when I needed gold to embellish a knife. It becomes prohibitively expensive to buy ready-made jewelry. You're not only paying for the gold, you're paying for the jeweler's time a a hefty markup. I was hoping to contact a local amateur goldsmith on craigslist or something who could sell me the gold at the going rate plus a reasonable fee for his or her services. I've allowed $50-$100 for this, while a man's gold band with the same amount of metal from a jeweler runs upwards from $250 or so. -Frank Thats why Jeweler wasn't listed. The local Wal~mart has mens 14K rings for 60 bucks. An 18K ladies 18" necklace just cost me 73 bucks. For a thumb stud I wouldn't go higher than 18K due to strength issues. -- Steve W. |
#14
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Gold
"Frank Warner" wrote in message . .. In article , Ed Huntress wrote: "Frank J Warner" wrote in message news:100320101820157778%warnerf@veriSPAMMERSDIEzon .net... Forgive me. I am abysmally ignorant about this. I need to know how much to pay for a small bit of gold. I'm asking for a piece, a cylinder .1875" diameter x .1875" long. Karat weight is negotiable: 18 karat, 24 karat. Doesn't matter. Price will probably differ with each, and I understand that. I can google the spot price of gold and calculate it out, but I have no idea how much a piece of gold this size weighs. Archimedes wasn't my best friend in high school. Steel prices are bad enough, and titanium, whoo boy. But I am totally lost when dealing with truly precious metals. Gold-mongers in my experience are notoriously reticent with a little thing called honesty, so I'd like to know what to expect as a reasonable price. Little help here? Ed? Where are you when I need you? -Frank -- Here's some of my work: http://www.franksknives.com If you mean *this* Ed, I'm not knowledgeable about buying gold. You want Harold Vardos. I haven't seen him for a while; maybe someone has his address. Er, yes, sorry to have confused you with him. He helped me with a previous question about precious metals. I'm working on a deadline right now, or I'd try to help more, but I can help you with the weight. First, gold is usually weighed in troy ounces, which equal approximately 31.10 grams (480 grains). The avoirdupois ounces we use for everything else equal 28.35 grams. The density of gold is 19.3 grams/cc. One cubic inch equals 16.387064 cc. From those equivalents, you can figure out the weight of gold you need, in troy ounces, avoirdupois ounces, or grams. If I wasn't busy I'd do the calculations. BTW, my guess is that you'll have to swage that shape yourself, from a piece of gold wire or whatever. That shouldn't be hard to do but you'll need a block of steel with a .1875 in. hole in it and a piece of steel rod of the same diameter -- and a hammer. g Good luck. I'll get back to this thread when I can and see what remains to be calculated. Thanks, Ed. -Frank I'm glad to see that others stepped in first. It saved me some calculation. g Too bad, I sold a couple of thousand dollars worth of old gold when the price peaked a few months back. It was my mother's old jewelry. I could have sold you a piece at wholesale. Which reminds me, there are a lot of jewelry shops buying gold. If there isn't some reason they can't do this, I would think that they'd sell you a piece fairly cheap. They aren't paying the commodity exchange rates, I can tell you. -- Ed Huntress |
#15
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Gold
In article ,
"Ed Huntress" wrote: Which reminds me, there are a lot of jewelry shops buying gold. If there isn't some reason they can't do this, I would think that they'd sell you a piece fairly cheap. They aren't paying the commodity exchange rates, I can tell you. ....but the whole point is to buy cheap and sell dear, thus making money at it. -- Cats, coffee, chocolate...vices to live by |
#16
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Gold
"Ecnerwal" wrote in message ... In article , "Ed Huntress" wrote: Which reminds me, there are a lot of jewelry shops buying gold. If there isn't some reason they can't do this, I would think that they'd sell you a piece fairly cheap. They aren't paying the commodity exchange rates, I can tell you. ...but the whole point is to buy cheap and sell dear, thus making money at it. Right. But they're buying from individual sellers at less than commodity prices, and no doubt they're selling it at something at least slightly lower than commodity prices, so they could charge a lot less than the retail price for jewelry gold, which appears to be the commodity price plus a substantial markup. There's probably plenty of slack for them to make some money without charging an arm and a leg. -- Ed Huntress |
#17
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Gold
On Mar 11, 7:51*am, Frank Warner wrote:
In article , " wrote: On Mar 10, 4:20*pm, Frank J Warner wrote: Forgive me. I am abysmally ignorant about this. I need to know how much to pay for a small bit of gold. I'm asking for a piece, a cylinder .1875" diameter x .1875" long. Karat weight is negotiable: 18 karat, 24 karat. Doesn't matter. Price will probably differ with each, and I understand that. I can google the spot price of gold and calculate it out, but I have no idea how much a piece of gold this size weighs. Archimedes wasn't my best friend in high school. Steel prices are bad enough, and titanium, whoo boy. But I am totally lost when dealing with truly precious metals. Gold-mongers in my experience are notoriously reticent with a little thing called honesty, so I'd like to know what to expect as a reasonable price. Little help here? Ed? Where are you when I need you? -Frank -- Here's some of my work:http://www.franksknives.com After looking at your knives I think you should make friends with a goldsmith. A goldsmith that likes knives could become a very good friend. What you need could be made out of scrap. Why that much precision? What kind of timeline? Karl Unfortunately I live in a very small town with not too many craftsmen like that, although I'm looking. The local jewelers are less than helpful. They won't even talk to me unless I want to buy a bag of Krugerrands or something. This is just a thumb stud for a lady's folding knife. Tiny bit of gold with an opal cabochon inset. -Frank -- Here's some of my work:http://www.franksknives.com/ I usually buy from he http://www.riogrande.com/MemberArea/SearchPage.aspx?page=GRID&category|category_root|1 04=Metals&category|cat_104|170=Gold Karl |
#18
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Gold
"Steve B" wrote in message news snip-. Gold is the easiest hustle in the world. All one has to do is flash some gold, and everyone wants to invest. The problem is that gold comes in all purities. The government type is .999 pure, and that is from refinement. It does down from there. The industry standard for fine gold is 9995. It does not go down from there, but up. Testing for gold purity is a scientific art that is very technical and involves specialized equipment, but that equipment is reasonably priced. It involves a touchstone, various gold needles of various % of gold, and some solutions, mainly acid. Read up on it. That's fine for buying scrap, but worthless for establishing fineness of refined gold. Fire assaying, along with various modern methods, establishes the purety of gold, not a touch stone. A lot of gold that comes in placer deposits ( visible chunks like the nuggets you see in a stream) can be formed into solid shapes, but the impurities in it make it less valuable than pure gold. Placer runs around 70%. Yes, placer can run 70%, as well as 94%, 67% and everything in between. There is no hard, fast rule in the fineness of gold found in nature. It has been found nearly pure, by the way, running 999. Impurities in gold typically are silver, then copper. So, a one ounce placer nugget is only 70% gold. Pure gold is nearly impossible to refine, that being 1,000 fine. Not quite sure of your meaning here. It is possible to achieve very pure gold, however at considerable expense. Zonal refining can yield quality in the six nines range. The Canadian Government is marketing Mapleleafs that are five nines. You pay a high premium for gold above 4 nines. smelting it is no big deal to get purer bars. Purer bars are not accomplished by smelting. Smelting is the process of removing metals from their ores. Heat will not purify gold in and of itself. There are heat processes that will elevate the fineness of gold, however. Cupelling is one of them. The Miller chlorine process is another. Both of these methods are well beyond the average person's ability, for they require specific equipment. The Miller process also offers the risk of death. Gold can be refined by various methods. It can be done electrolytically, chemically, or by zonal heating. The electrolytic process is typicallly applied to gold of high purity, to remove trace elements. Gold should never be melted in any kind of metallic vessel. Molten metals are strong solvents of other metals, so the gold will be contaminated, often rendering it useless as it loses its ductility, depending on the alloying element. Lead, for example, destroys gold's qualities of ductility. There's more than can be discussed here. It would be easy enough to alloy pure agold to the desired karat, and pour the required piece. Harold Harold |
#19
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Gold
"Steve B" wrote in message news A lot of gold that comes in placer deposits ( visible chunks like the nuggets you see in a stream) can be formed into solid shapes, but the impurities in it make it less valuable than pure gold. Placer runs around 70%. So, a one ounce placer nugget is only 70% gold. Pure gold is nearly impossible to refine, that being 1,000 fine. Also called 24k. So a little math will tell you 14k is 14/24ths gold. Chemical testing can give you a 1-1,000 rating. Yet nuggets can bring prices higher than bullion if the end use is gold nugget jewelry, so the melt value of the nuggets is not often the best market to sell them. -- Roger Shoaf About the time I had mastered getting the toothpaste back in the tube, then they come up with this striped stuff. |
#20
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Gold
Ed Huntress wrote:
"Ecnerwal" wrote in message ... In article , "Ed Huntress" wrote: Which reminds me, there are a lot of jewelry shops buying gold. If there isn't some reason they can't do this, I would think that they'd sell you a piece fairly cheap. They aren't paying the commodity exchange rates, I can tell you. ...but the whole point is to buy cheap and sell dear, thus making money at it. Right. But they're buying from individual sellers at less than commodity prices, and no doubt they're selling it at something at least slightly lower than commodity prices, so they could charge a lot less than the retail price for jewelry gold, which appears to be the commodity price plus a substantial markup. There's probably plenty of slack for them to make some money without charging an arm and a leg. I don't remember the name off hand but there was a jeweler that always advertised as being ones who charged you by the actual weight of the gold plus IIRC $50.00. As for profit, in the words of Randy Savage "OOHH YEAHHHHH" Most finished jewelery has a HUGE mark-up for profit. Most places you hit are in the range of 300-400% of the wholesale cost of the finished item, which itself is usually 200 percent of the price of the materials and time used in creation. Some of the really "exclusive" places are even worse. Plus there are some big regional differences as well. The wedding band I wear is a simple diamond etched 14K item. Distributor price on it was around 80 bucks when it was purchased. Retail in this area would have been closer to $200.00. -- Steve W. |
#21
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Gold
Harold & Susan Vordos wrote:
Gold should never be melted in any kind of metallic vessel. Molten metals are strong solvents of other metals, so the gold will be contaminated, often rendering it useless as it loses its ductility, depending on the alloying element. so, if I wanted to melt a few old rings down into a cube or ingot, what vessel or mold material can one use? |
#22
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Gold
Forgive me. I am abysmally ignorant about this.
I need to know how much to pay for a small bit of gold. I'm asking for a piece, a cylinder .1875" diameter x .1875" long. Karat weight is negotiable: 18 karat, 24 karat. Doesn't matter. Price will probably differ with each, and I understand that. I can google the spot price of gold and calculate it out, but I have no idea how much a piece of gold this size weighs. Archimedes wasn't my best friend in high school. Steel prices are bad enough, and titanium, whoo boy. But I am totally lost when dealing with truly precious metals. Gold-mongers in my experience are notoriously reticent with a little thing called honesty, so I'd like to know what to expect as a reasonable price. Little help here? Ed? Where are you when I need you? -Frank -- Here's some of my work: http://www.franksknives.com You might try posting this question on the rec.craft.jewelry newsgroup. The moderator there will answer your question and there are other knowledgeable people their to offer answers. |
#23
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Gold
RBnDFW wrote:
Harold & Susan Vordos wrote: Gold should never be melted in any kind of metallic vessel. Molten metals are strong solvents of other metals, so the gold will be contaminated, often rendering it useless as it loses its ductility, depending on the alloying element. so, if I wanted to melt a few old rings down into a cube or ingot, what vessel or mold material can one use? ceramics |
#24
Posted to rec.crafts.metalworking
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Gold
In article
, " wrote: On Mar 11, 7:51*am, Frank Warner wrote: In article , " wrote: On Mar 10, 4:20*pm, Frank J Warner wrote: Forgive me. I am abysmally ignorant about this. I need to know how much to pay for a small bit of gold. I'm asking for a piece, a cylinder .1875" diameter x .1875" long. Karat weight is negotiable: 18 karat, 24 karat. Doesn't matter. Price will probably differ with each, and I understand that. I can google the spot price of gold and calculate it out, but I have no idea how much a piece of gold this size weighs. Archimedes wasn't my best friend in high school. Steel prices are bad enough, and titanium, whoo boy. But I am totally lost when dealing with truly precious metals. Gold-mongers in my experience are notoriously reticent with a little thing called honesty, so I'd like to know what to expect as a reasonable price. Little help here? Ed? Where are you when I need you? -Frank -- Here's some of my work:http://www.franksknives.com After looking at your knives I think you should make friends with a goldsmith. A goldsmith that likes knives could become a very good friend. What you need could be made out of scrap. Why that much precision? What kind of timeline? Karl Unfortunately I live in a very small town with not too many craftsmen like that, although I'm looking. The local jewelers are less than helpful. They won't even talk to me unless I want to buy a bag of Krugerrands or something. This is just a thumb stud for a lady's folding knife. Tiny bit of gold with an opal cabochon inset. -Frank -- Here's some of my work:http://www.franksknives.com/ I usually buy from he http://www.riogrande.com/MemberArea/SearchPage.aspx?page=GRID&category|category_root|1 04=Metals&category|cat_104|170=Gold Karl Yes, I've bought from Rio Grande before, but this was such a ridiculously small amount of gold I doubt they would have accepted the order. -Frank -- Here's some of my work: http://www.franksknives.com/ |
#25
Posted to rec.crafts.metalworking
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Gold
"RBnDFW" wrote in message ... Harold & Susan Vordos wrote: Gold should never be melted in any kind of metallic vessel. Molten metals are strong solvents of other metals, so the gold will be contaminated, often rendering it useless as it loses its ductility, depending on the alloying element. so, if I wanted to melt a few old rings down into a cube or ingot, what vessel or mold material can one use? My recommendation is to go to a jewelry supply store and purchase a melting dish. They are made of clay, and not terribly expensive. It is VERY important that you season the dish before using. They are notorious for cracking when first heated, otherwise. Begin by heating the dish on a low heat, so the moisture contained within will evaporate slowly. When the dish has dried well, raise the temperature of the dish to a dull red heat (using a torch), then sprinkle a little borax on the dish, so it ends up with a thin coating. That coating will prevent the gold from sticking to the dish, and allow the molten gold to pour easily from the dish. Make sure the spout is coated. Too much borax and it pours off with the gold, so pay close attention to the amount you use. Borax glass, or anhydrous borax is the best choice, but you can use any borax you can find, it just contains water and is light and fluffy, so it tends to blow away, unlike the anhydrous or glass borax. A mold can be prepared by drilling through a piece of steel, although I think I'd recommend a piece of cast iron instead. The finish of the hole should be quite good, so the gold can't key. When the mold is made, it should be heated to dull red, to oxidize the surface, which will help prevent soldering of the gold when it is poured. Use a second piece of metal as a stop for the bottom of the mold. It, too, should be oxidized and then smoked well, to prevent soldering. When you are ready to pour the gold slug, the mold should be preheated to a point just under 1,000 degree, then it should be fully smoked with an acetylene torch. The carbon film will serve two purposes. It will prevent the gold from soldering to the mold, and it should yield a thickness that will make the resulting slug a tiny amount smaller than the mold, so it can be removed easily. Harold |
#26
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Gold
"chaniarts" wrote in message ... RBnDFW wrote: Harold & Susan Vordos wrote: Gold should never be melted in any kind of metallic vessel. Molten metals are strong solvents of other metals, so the gold will be contaminated, often rendering it useless as it loses its ductility, depending on the alloying element. so, if I wanted to melt a few old rings down into a cube or ingot, what vessel or mold material can one use? ceramics That can be risky. What ever the choice may be, it must be resistant to thermal shock. Ceramics (Coors, for example) isn't. My previous post details what works very well, and has been used for years by the jewelry trade. I used the same system when I refined small lots. Harold |
#27
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Gold
"Roger Shoaf" wrote in message ... "Steve B" wrote in message news A lot of gold that comes in placer deposits ( visible chunks like the nuggets you see in a stream) can be formed into solid shapes, but the impurities in it make it less valuable than pure gold. Placer runs around 70%. So, a one ounce placer nugget is only 70% gold. Pure gold is nearly impossible to refine, that being 1,000 fine. Also called 24k. So a little math will tell you 14k is 14/24ths gold. Chemical testing can give you a 1-1,000 rating. Yet nuggets can bring prices higher than bullion if the end use is gold nugget jewelry, so the melt value of the nuggets is not often the best market to sell them. That is absolutely the truth. Nuggets tend to be worth far more than the gold they contain. Anything above a troy ounce is usually in demand as a specimen. Small nuggets may or may not be worth more. I processed anything that came in that was small. Harold |
#28
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Gold
"Harold & Susan Vordos" wrote in message .. . "chaniarts" wrote in message ... RBnDFW wrote: Harold & Susan Vordos wrote: Gold should never be melted in any kind of metallic vessel. Molten metals are strong solvents of other metals, so the gold will be contaminated, often rendering it useless as it loses its ductility, depending on the alloying element. so, if I wanted to melt a few old rings down into a cube or ingot, what vessel or mold material can one use? ceramics That can be risky. What ever the choice may be, it must be resistant to thermal shock. Ceramics (Coors, for example) isn't. My previous post details what works very well, and has been used for years by the jewelry trade. I used the same system when I refined small lots. Harold With such a tiny amount of gold, Harold, can't he melt it in a charcoal block? I thought I'd heard of that being done. -- Ed Huntress |
#29
Posted to rec.crafts.metalworking
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Gold
On 2010-03-12, Ed Huntress wrote:
"Harold & Susan Vordos" wrote in message .. . "chaniarts" wrote in message ... RBnDFW wrote: Harold & Susan Vordos wrote: Gold should never be melted in any kind of metallic vessel. Molten metals are strong solvents of other metals, so the gold will be contaminated, often rendering it useless as it loses its ductility, depending on the alloying element. so, if I wanted to melt a few old rings down into a cube or ingot, what vessel or mold material can one use? ceramics That can be risky. What ever the choice may be, it must be resistant to thermal shock. Ceramics (Coors, for example) isn't. My previous post details what works very well, and has been used for years by the jewelry trade. I used the same system when I refined small lots. Harold With such a tiny amount of gold, Harold, can't he melt it in a charcoal block? I thought I'd heard of that being done. And, could you melt it in a graphite block? (EDM graphite) i |
#30
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Gold
Ignoramus29334 wrote:
With such a tiny amount of gold, Harold, can't he melt it in a charcoal block? I thought I'd heard of that being done. And, could you melt it in a graphite block? (EDM graphite) i PURE carbon graphite yes provided it's yellow gold. I would suggest an easy method myself. Involves less work and will give a good result. Grab a carbon arc rod. Bore a hole slightly over-sized into it and 3-4 times deeper than needed. Now use nippers to cut the gold into small pieces and drop them into the hole. Grab a good torch (MAPP or O/A) then heat the rod until the gold melts. Add more gold as needed until you have a large enough piece. Let it cool and then us the nippers to cut/crush the carbon. You basically will be using the "crucible" as a disposable mold. Remove the gold and machine as needed. -- Steve W. |
#31
Posted to rec.crafts.metalworking
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Gold
Harold & Susan Vordos wrote:
"chaniarts" wrote in message ... RBnDFW wrote: Harold & Susan Vordos wrote: Gold should never be melted in any kind of metallic vessel. Molten metals are strong solvents of other metals, so the gold will be contaminated, often rendering it useless as it loses its ductility, depending on the alloying element. so, if I wanted to melt a few old rings down into a cube or ingot, what vessel or mold material can one use? ceramics That can be risky. What ever the choice may be, it must be resistant to thermal shock. Ceramics (Coors, for example) isn't. My previous post details what works very well, and has been used for years by the jewelry trade. I used the same system when I refined small lots. Harold your next post states: "My recommendation is to go to a jewelry supply store and purchase a melting dish. They are made of clay, and not terribly expensive. It is VERY important that you season the dish before using." tmk, clay is ceramics. |
#32
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Gold
On Fri, 12 Mar 2010 15:46:46 -0700, "chaniarts"
wrote: Harold & Susan Vordos wrote: "chaniarts" wrote in message ... RBnDFW wrote: Harold & Susan Vordos wrote: Gold should never be melted in any kind of metallic vessel. Molten metals are strong solvents of other metals, so the gold will be contaminated, often rendering it useless as it loses its ductility, depending on the alloying element. so, if I wanted to melt a few old rings down into a cube or ingot, what vessel or mold material can one use? ceramics That can be risky. What ever the choice may be, it must be resistant to thermal shock. Ceramics (Coors, for example) isn't. My previous post details what works very well, and has been used for years by the jewelry trade. I used the same system when I refined small lots. Harold your next post states: "My recommendation is to go to a jewelry supply store and purchase a melting dish. They are made of clay, and not terribly expensive. It is VERY important that you season the dish before using." tmk, clay is ceramics. Harold was referring to vitrified ceramics. We used to use 99.5% (iirc, that was in 1980) alumina Coors brick, we had about 300,000 of them in an experimental electrolytic cell. The heatup schedule took 6 weeks to 700 C. The cell was 75' x 30' x 7' deep. Those bricks were highly prized for sharpening knives. And they were very sensitive to thermal shock. Pete Keillor |
#33
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Gold
Check the Riogrande site again.
There is a stock jewelry finding called a "Straight tube bezel w/bearing.". It is a short straight piece of gold tubing with a counterbored end for a stone to sit in. Assuming your opal is close to the diameter of the bar you inquired about, you need one for a .35ct or .50ct stone. In that size they will probably only be 3-4mm tall. They will probably cost $15-20 each in 14k Paul K. Dickman "Frank Warner" wrote in message . .. In article , " wrote: On Mar 11, 7:51 am, Frank Warner wrote: In article , " wrote: On Mar 10, 4:20 pm, Frank J Warner wrote: Forgive me. I am abysmally ignorant about this. I need to know how much to pay for a small bit of gold. I'm asking for a piece, a cylinder .1875" diameter x .1875" long. Karat weight is negotiable: 18 karat, 24 karat. Doesn't matter. Price will probably differ with each, and I understand that. I can google the spot price of gold and calculate it out, but I have no idea how much a piece of gold this size weighs. Archimedes wasn't my best friend in high school. Steel prices are bad enough, and titanium, whoo boy. But I am totally lost when dealing with truly precious metals. Gold-mongers in my experience are notoriously reticent with a little thing called honesty, so I'd like to know what to expect as a reasonable price. Little help here? Ed? Where are you when I need you? -Frank -- Here's some of my work:http://www.franksknives.com After looking at your knives I think you should make friends with a goldsmith. A goldsmith that likes knives could become a very good friend. What you need could be made out of scrap. Why that much precision? What kind of timeline? Karl Unfortunately I live in a very small town with not too many craftsmen like that, although I'm looking. The local jewelers are less than helpful. They won't even talk to me unless I want to buy a bag of Krugerrands or something. This is just a thumb stud for a lady's folding knife. Tiny bit of gold with an opal cabochon inset. -Frank -- Here's some of my work:http://www.franksknives.com/ I usually buy from he http://www.riogrande.com/MemberArea/SearchPage.aspx?page=GRID&category|category_root|1 04=Metals&category|cat_104|170=Gold Karl Yes, I've bought from Rio Grande before, but this was such a ridiculously small amount of gold I doubt they would have accepted the order. -Frank -- Here's some of my work: http://www.franksknives.com/ |
#34
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Gold
Pete Keillor wrote:
Harold was referring to vitrified ceramics. We used to use 99.5% (iirc, that was in 1980) alumina Coors brick, we had about 300,000 of them in an experimental electrolytic cell. The heatup schedule took 6 weeks to 700 C. The cell was 75' x 30' x 7' deep. Those bricks were highly prized for sharpening knives. And they were very sensitive to thermal shock. Pete Keillor If you care to start another thread and talk about that, I'd love to read it. Wes |
#35
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Gold
"Harold & Susan Vordos" wrote in message .. . "Steve B" wrote in message news snip-. Gold is the easiest hustle in the world. All one has to do is flash some gold, and everyone wants to invest. The problem is that gold comes in all purities. The government type is .999 pure, and that is from refinement. It does down from there. The industry standard for fine gold is 9995. It does not go down from there, but up. Testing for gold purity is a scientific art that is very technical and involves specialized equipment, but that equipment is reasonably priced. It involves a touchstone, various gold needles of various % of gold, and some solutions, mainly acid. Read up on it. That's fine for buying scrap, but worthless for establishing fineness of refined gold. Fire assaying, along with various modern methods, establishes the purety of gold, not a touch stone. A lot of gold that comes in placer deposits ( visible chunks like the nuggets you see in a stream) can be formed into solid shapes, but the impurities in it make it less valuable than pure gold. Placer runs around 70%. Yes, placer can run 70%, as well as 94%, 67% and everything in between. There is no hard, fast rule in the fineness of gold found in nature. It has been found nearly pure, by the way, running 999. Impurities in gold typically are silver, then copper. So, a one ounce placer nugget is only 70% gold. Pure gold is nearly impossible to refine, that being 1,000 fine. Not quite sure of your meaning here. It is possible to achieve very pure gold, however at considerable expense. Zonal refining can yield quality in the six nines range. The Canadian Government is marketing Mapleleafs that are five nines. You pay a high premium for gold above 4 nines. smelting it is no big deal to get purer bars. Purer bars are not accomplished by smelting. Smelting is the process of removing metals from their ores. Heat will not purify gold in and of itself. There are heat processes that will elevate the fineness of gold, however. Cupelling is one of them. The Miller chlorine process is another. Both of these methods are well beyond the average person's ability, for they require specific equipment. The Miller process also offers the risk of death. Gold can be refined by various methods. It can be done electrolytically, chemically, or by zonal heating. The electrolytic process is typicallly applied to gold of high purity, to remove trace elements. Gold should never be melted in any kind of metallic vessel. Molten metals are strong solvents of other metals, so the gold will be contaminated, often rendering it useless as it loses its ductility, depending on the alloying element. Lead, for example, destroys gold's qualities of ductility. There's more than can be discussed here. It would be easy enough to alloy pure agold to the desired karat, and pour the required piece. Harold My point, which I apparently didn't state, or you didn't get was that for the average layman to trade in gold is not as simple as weight x spot price equals value. Hope I got it right that time. I don't know everything about gold, but I know a good bit about placer mining. From there, the refining and testing is up to the experts. And most laymen are not experts, but are exploited by some of them, and the conmen, too. I believe that the current wave of gold buyers on TV must be rolling in the dough. A lot of people probably send in diamonds and all, just getting paid for the gold. And I'm just a little bit suspicious as to whose gold they are sending in for fast cash. Steve |
#36
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Gold
"chaniarts" wrote in message ... RBnDFW wrote: Harold & Susan Vordos wrote: Gold should never be melted in any kind of metallic vessel. Molten metals are strong solvents of other metals, so the gold will be contaminated, often rendering it useless as it loses its ductility, depending on the alloying element. so, if I wanted to melt a few old rings down into a cube or ingot, what vessel or mold material can one use? ceramics Here in the old west, I have found assayer's shacks, or what's left of them with the remains of thousands of broken crucibles laying scattered all about. Steve |
#37
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Gold
"Steve W." wrote in message ... Ignoramus29334 wrote: With such a tiny amount of gold, Harold, can't he melt it in a charcoal block? I thought I'd heard of that being done. And, could you melt it in a graphite block? (EDM graphite) i PURE carbon graphite yes provided it's yellow gold. Not quite sure of your reasoning, stating it must be yellow gold. To my knowledge, gold alloy of almost any description can be melted with a graphite vessel. Harold |
#38
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Gold
"Steve B" wrote in message ... snip- I believe that the current wave of gold buyers on TV must be rolling in the dough. A lot of people probably send in diamonds and all, just getting paid for the gold. And I'm just a little bit suspicious as to whose gold they are sending in for fast cash. Steve You are dead on with your assessment. People are being screwed by these buyers. KSL TV did a story on this some time ago. Cascade Refining, in SLC, was found to be quite honest with their customers. If memory serves, one of the mail-in buyers returned a miserably low percentage, something like 18%. It's very difficult to deal in gold unless you are willing to take a bruising. Harold |
#39
Posted to rec.crafts.metalworking
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Gold
"chaniarts" wrote in message ... Harold & Susan Vordos wrote: "chaniarts" wrote in message ... RBnDFW wrote: Harold & Susan Vordos wrote: Gold should never be melted in any kind of metallic vessel. Molten metals are strong solvents of other metals, so the gold will be contaminated, often rendering it useless as it loses its ductility, depending on the alloying element. so, if I wanted to melt a few old rings down into a cube or ingot, what vessel or mold material can one use? ceramics That can be risky. What ever the choice may be, it must be resistant to thermal shock. Ceramics (Coors, for example) isn't. My previous post details what works very well, and has been used for years by the jewelry trade. I used the same system when I refined small lots. Harold your next post states: "My recommendation is to go to a jewelry supply store and purchase a melting dish. They are made of clay, and not terribly expensive. It is VERY important that you season the dish before using." tmk, clay is ceramics. I know and understand that, but if you say ceramics and leave it as such, I think you'll find that enough people will not consider a clay dish as being satisfactory, when it is, and may even consider that Coors lab ware would be the best choice. If you've ever worked with any of that stuff, you know how it isn't fond of thermal shock, which is hard to avoid when working with molten metals. Harold |
#40
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Gold
"Ignoramus29334" wrote in message ... On 2010-03-12, Ed Huntress wrote: "Harold & Susan Vordos" wrote in message .. . "chaniarts" wrote in message ... RBnDFW wrote: Harold & Susan Vordos wrote: Gold should never be melted in any kind of metallic vessel. Molten metals are strong solvents of other metals, so the gold will be contaminated, often rendering it useless as it loses its ductility, depending on the alloying element. so, if I wanted to melt a few old rings down into a cube or ingot, what vessel or mold material can one use? ceramics That can be risky. What ever the choice may be, it must be resistant to thermal shock. Ceramics (Coors, for example) isn't. My previous post details what works very well, and has been used for years by the jewelry trade. I used the same system when I refined small lots. Harold With such a tiny amount of gold, Harold, can't he melt it in a charcoal block? I thought I'd heard of that being done. And, could you melt it in a graphite block? (EDM graphite) Hey Iggy, Don't know. If it has binders, perhaps not. If it's just graphite, it should work quite well. You have to be careful that you don't contaminate the gold when it's melted, so if there was even a trace of anything metallic in the graphite, I'd say stay away. You risk destroying the alloy's ductility, or its integrity as a given alloy. Harold |
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