Bismuth is a crystalline white metal that is still solid at room temperature, however, it doesn’t take much to melt it. Once molten, after the bismuth cools back down, it organizes its molecules into really interesting shapes. When matter organizes its molecules into a more specific pattern, it creates a crystal. Although, I would tend to believe something of this nature would have been an interstellar object, bismuth is man made. Here I have wrapped a really cool Bismuth “crystal” in solid sterling silver wire, & strung it on a solid sterling 17" chain. This necklace is one of a kind. Interstellar. Sterling Silver & Bismuth Crsytalline Metal Pendant