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Forums Home » Reply To: Paraiba or Copper Bearing Tourmaline, How can I know?

Reply To: Paraiba or Copper Bearing Tourmaline, How can I know?

#177921
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terry
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I thought about id’ing it with a spectrometer, my GIA text book says that that test is inconclusive as it varies so much. I was wondering about an electrical test, such as a diamond tester. Copper is electrically conductive, that’s what a diamond tester uses to test diamonds and moissanite. Anybody ever heard of something like that?
Also wouldn’t I use the IGS system for a positive ID? They have cert’s available with photos for $120.00 to members. Or do you think a GIA certificate is better?


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