Wurtzite

Wurtzite

Wurtzite, also known as wurtzite, is a zinc and iron sulfide mineral with the chemical formula (Zn, Fe) S. It is a rare polymorphic form of sphalerite structure. The iron content changes by up to 8%. It is a homomorphic isomer of sphalerite. It appears in hydrothermal deposits associated with sphalerite, pyrite, chalcopyrite, barite, and pyrite, as well as in clay iron nodules at low temperatures.