mineral
Gypsum
Calcium Sulfate Dihydrate (CaSO4·2H2O)
AI-generated identification · may be incorrectHardness of 2 on Mohs scale, transparent to translucent with pearly or vitreous luster, displays monoclinic crystal structure and perfect cleavage.
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Physical properties
Hardness of 2 on Mohs scale, transparent to translucent with pearly or vitreous luster, displays monoclinic crystal structure and perfect cleavage.
Formation & geological history
Forms through the evaporation of ancient saline bodies of water, primarily in sedimentary evaporite deposits.
Uses & applications
Widely used in the manufacturing of drywall, plaster of Paris, cement, and soil conditioning in agriculture.
Geological facts
Gypsum can form massive transparent crystal formations known as selenite, including giant crystals found in Mexico's Naica Mine.
Field identification & locations
Easily identified by its softness, as it can be scratched easily with a fingernail. Found globally in sedimentary basins.
