Pyrite crystals, a selection of specimens of this crystallized mineral species. Pyrite is a mineral, and here you’ll find a number of collectibles presented with a description, one or more photos and sometimes a video. These pyrites are for sale.
Pyrite is an iron disulfide, with the chemical formula FeS2, and the cubic crystal system, polymorph of marcasite, with the same chemical composition but crystallizing in the orthorhombic system.