Bismuth Crystals
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Bismuth Crystals form incredible geometric patterns in a stair step arrangement similar to a stadium. It often has several iridescent metallic colors caused by light scattering at a very thin layer of bismuth oxide. Bismuth is a fairly rare metallic element. This is a man made crystal grown in a lab at about 271 degrees centigrade or 520 degrees Fahrenheit. It can only be grown from electronic grade highly refined bismuth.
