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Posted in response to CUPRITE from sanela on October 22, 2007 at 20:21:38:

Re: CUPRITE

Dear Sanela & Don;
1st, WHERE did you make this find? Your info about the specimen makes this VERY important before you go further.
2nd, "red crystals under some kind of dark residue which turns in to a yellowish powder"? HOLD THE BOAT; Don, doesn't that sound like realgar changing to pararealgar changing to orpiment? If so, cleaning that without wearing latex or vinyl gloves would be a VERY bad idea.
Sanela, again, if you aren't sure where this sample came from, DON'T DO ANYTHING to that sample until you post a pic so we can ID it; if it is what I suggest, you are dealing with possible arsenic poisoning from an arsenic mineral, NOT A COPPER one. They break the addys, here, so, just compensate & send a pic to me, directly; I can tell you what you have with a semi-decent pic. Just as long as one of the red spots & the matrix around it are fairly clear to see. If this specimen is from overseas, it COULD also be a thallium mineral, equally as dangerous.
I await your pic posting or letter with pic.
Your friend, Steve

From steve - October 24, 2007 at 04:58:14
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Message: 65211

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