Natural Bismuth Ore,Rainbow Bismuth, Metal Crystal,Crystal Gifts,Mineral Specimen,Home Decoration,Rainbow Bismuth, Metal Crystal

Please pay attention to the actual size given in the listing as the pictures are generally enlarged to show details.

• Bismuth is a chemical element with the symbol Bi and atomic number 83.
• The iridescent rainbow of colors is caused by light scattering off thin layers of bismuth oxide formed when the surface of the hot bismuth reacts with the air.
• Crystal bismuth will be oxidized during the production process, resulting in a variety color of the oxide film, it is very bright!
• Metal bismuth is a magnificent crystal which grows up in artificial environment. Each piece of bismuth crystal is unique and different from all other ones, so it's very meaningful to consider it as a gift to your relatives, friends, teacher and classmates.
• Bismuth chemically resembles arsenic and antimony. Bismuth is the most naturally diamagnetic element, and has one of the lowest values of thermal conductivity among metals.