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Posted to alt.machines.cnc,rec.crafts.metalworking
BottleBob
 
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Default OK what is the diferance between carbide and powdered metal ?

Cliff wrote:

On Tue, 31 Jan 2006 01:43:27 GMT, BottleBob wrote:

Cliff wrote:

On Mon, 30 Jan 2006 23:45:11 GMT, BottleBob wrote:

Cliff wrote:

Try this:
Pumice, obsidian, and scoria are glasses:
True [X]
False [ ]


Cliff:

Your turn, what are you afraid of?

Pumice, obsidian, and scoria are amorphous (non-crystalline or
"glassy"), igneous rock.

True [ ]
False [ ]


You objected to being informed that these were glasses G.


Cliff:

I notice you still Cliffoided the question yet again.

Actually, what I objected to was your erroneous inference that ALL
rocks have a crystalline structure.

Let me repeat the progression of this sub-thread:

================================================== ======
BB said:

"Do all rocks have a crystalline structure? NO!"

Cliff said:

"Umm ... you may want to rethink that G."

BB said:

"Oh? Why? You've never heard of amorphous (non-crystalline), rock?"
================================================== ======

So are you ready to honestly answer the question, or are you going to
try to use more weasel words to avoid it? LOL

Pumice, obsidian, and scoria are amorphous (non-crystalline or
"glassy"), igneous rock.

True [ ]
False [ ]

--
BottleBob
http://home.earthlink.net/~bottlbob