Question

What are bismuth crystals? ​

Answer 1

Bismuth is a crystalline white metal, with a pink tinge. The iridescent color of this bismuth crystal is the result of a thin oxide layer on its surface.

Answer 2

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Bismuth crystals:

Bismuth crystals are one of the easiest and most beautiful metal crystals to grow. These crystals are known for their rainbow colors that are caused by the oxide layer that forms on the metal. Bismuth crystallizes into an intricate geometric “hopper” form.