Minerals
Gypsum
CaSO4·2H2O
Didier Descouens / CC BY-SA 4.0, via Wikimedia Commons · CC BY-SA 4.0 · Source
Overview
Soft sulfate mineral; forms desert roses.
Identification characteristics
- Mohs hardness 2
- Streak: White
- Lustre: Vitreous to pearly
Formation and occurrence
Evaporite beds
Common uses
Plaster, drywall