Pyrite with Sphalerite, Peru
4" x 3.5" x 4.5" / 2.6 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 was mined from Huanzala, Peru.