Minerals
Pyrite
FeS2
Also known as: Fool's gold
Ivar Leidus / CC BY-SA 4.0, via Wikimedia Commons · CC BY-SA 4.0 · Source
Overview
“Fool’s gold”; cubic crystals common.
Identification characteristics
- Mohs hardness 6–6.5
- Streak: Greenish-black
- Lustre: Metallic
Formation and occurrence
Sedimentary and hydrothermal environments
Common uses
Sulfuric acid source historically