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As a gem it is a challenging cut
Copper laps are charged with diamond grit (best of all
so every sale will help fund successful cobalt sapphire
either by a lamp or by another laser
Trinitite Specimens Marked Letter:Trinitite Specimen 1.94g As a gem it isThese are specimens of Trinitite, glass formed from the earth when the Trinity nuclear test was conducted, marking the beginning of the nuclear age. They aren't radioactive anymore but each is a small piece of history. They have a very unusual and distinctive appearance with a green color and odd grainy structure, and their shape reflects the force that formed them. Trinitite is no longer available for collecting so all that's available is what's in