Pyrite - P2.75
Pyrite in Calcite, Michigan
5.5" / 2.75 lbs
Pyrite is a brass-yellow mineral with a bright metallic luster. It has a chemical composition of iron disulfide (FeS2) and is the most common sulfide mineral. It forms at high and low temperatures and occurs, usually in small quantities, in igneous, metamorphic, and sedimentary rocks worldwide. This specimen contains a rare combination of Pyrite in Calcite. Locality: Hiawatha No. 2 Mine, Stambaugh, Menominee Iron Range, Iron Co., Michigan.
NB: This specimen glows red-orange under fluorescent light.