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In Reply to: Available usually as raw assorted colored tourmaline beads posted by hotbird on March 27, 2008 at 21:28:02:
reveals tourmaline to be pyroelectric, whereby the positive and negative poles are not necessarily manifested until heated to 100 degrees: so a dip in boiling water will do the trick.
If you ever get a chance to visit Quartzite, Arizona from about November through February, you can [purchase quartz, tourmaline and other semi precious stones fairly cheaply. It's the world's biggest swap meet/trailer park and a lot of rock hounds winter there in preparation for the Tucson show in late February/ April.
Stu
Edits: 03/28/08
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- Further reading - unclestu52 00:31:07 03/28/08 (0)
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