Description
Irradiated Smokey Quartz cluster from Arkansas. This one is almost black and opaque in places and clear in others.
Smokey Quartz is a brownish grey, translucent variety of quartz that ranges in clarity from almost complete transparency to an almost-opaque brownish-gray or black crystal. Like other quartz gems, it is a silicon dioxide crystal, and is the most common mineral the earth’s crust.
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