One of the most eye-catching and captivating crystals you’ll add to your collection!
Crystal Bismuth crystal structures display amazing colors and shapes! Their fascinating rainbow colors occur upon oxidation. The variety of rainbow colors are due to variations of thickness of the oxide layer that forms on the crystal surface, causing different wavelengths of light to interfere with one another.
Bismuth is one of the pure chemical elements (Bi, 83) and a metal with many unique properties. It is almost as dense as lead, but without the toxicity. It is also one of the least thermally conductive metals, but has a relatively low melting point (271°C, 520°F). In fact, when melted, bismuth can crystallize upon cooling into the stair-stepped pattern. The iridescent colors are caused by the oxidation of the outer layer as it cools.
- These are large crystals. Each about 50+g
- Photos are representative of what you will receive. Please allow for variation in shape and color.
