mineral
Satin Spar Gypsum (Selenite Wand)
Calcium Sulfate Dihydrate (CaSO4·2H2O)
Hardness of 2 on the Mohs scale, pearly to silky luster, white/translucent color, monoclinic crystal system, parallel fibrous texture showing fiber-optic qualities, perfect cleavage in one direction, specific gravity around 2.3.
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Physical properties
Hardness of 2 on the Mohs scale, pearly to silky luster, white/translucent color, monoclinic crystal system, parallel fibrous texture showing fiber-optic qualities, perfect cleavage in one direction, specific gravity around 2.3.
Formation & geological history
Forms as an evaporite mineral in saline lakes, playass, and hot spring deposits through the evaporation of water rich in calcium and sulfate ions.
Uses & applications
Used in metaphysical practices as a wand or charging plate, carved into decorative objects, and commercially used in plaster of Paris, drywall, and soil conditioning.
Geological facts
Although commonly sold in metaphysical shops under the trade name 'Selenite', this fibrous variety is technically 'Satin Spar'. True selenite forms clear, flat, glass-like sheet crystals.
Field identification & locations
Can be identified in the field by its extreme softness (can be easily scratched with a fingernail), silky sheen, and fibrous structure. Major sources include Morocco, Mexico, USA, and Madagascar.
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