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You might want to check in with G.I.A., Gemological Institure of America. They are located in Az. but I'm sure they have a website. Might also check some of the gems or jewelers supply houses/sites. Maybe the lapidary (grind your own gems) sites. Perhaps your local/larger library might have gemological books you could check. Best wishes on your search. (I'm sure I've tossed all my old ones out.)

2006-06-29 17:29:18 · answer #1 · answered by Sweet Gran 4 · 0 0

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