"Stuart Johnson" wrote in message
...
First a little warning.. I have not tried this.

Buy a large piece of iron pipe and an end cap to use as a container. Get a
send piece of pipe and with end caps that will fit inside the larger
piece. I
don't know if close fit or very small fit would be best. Use caps on both
ends of the smaller pipe. Drop the lapus nuggets into the large piece and
use
the smaller to crush using a hammer if needed.

Stuart Johnson
Red Oak, Texas
================================
For harder stones, this may or may not work. If you can find a piece of
hardened steel, like a shock absorber rod or a king pin from an old auto
front end, you can grind a mild dome on one end and pound the other end with
the hammer. The pipe end you're using may also be too soft for hard stones.
If it shows signs of the stone digging in, a piece of tool steel (like you'd
make a scraper from) cut to fit inside the pipe cap may work. Once you get
past about 7 on the 1- 10 Moh hardness scale used for grading stones (1=
talc, 10=diamond, carbide is around 8), crushing becomes pretty difficult,
unless there are fault lines in the stones.
Good luck.

Ken Moon
Webberville, TX