It’s used to make lamps … https://amzn.to/2UUvXAo
RE: Blurtphoto: Agates, Amethyst and other strange rocks from Lake Superior Canada
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Blurtphoto: Agates, Amethyst and other strange rocks from Lake Superior Canada
also used in things like microscopes and geiger-counters. lol. Glass is a horrible mess at the atomic level whereas a crystal has a nice structure that allows things like electrons to go through.