bijoux-et-mineraux:Opal Aura Quartz - Arkansas The unique colors come from a thin layer of platinum, which is molecularly bonded to the quartz

bijoux-et-mineraux:Opal Aura Quartz - Arkansas The unique colors come from a thin layer of platinum, which is molecularly bonded to the quartz

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from: http://9yro.tumblr.com/post/111066180574