mineral
Celestite
Celestine (SrSO4)
AI-generated identification · may be incorrectHardness of 3 to 3.5 on the Mohs scale, pale blue to white color, vitreous to pearly luster, and orthorhombic crystal system.
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Physical properties
Hardness of 3 to 3.5 on the Mohs scale, pale blue to white color, vitreous to pearly luster, and orthorhombic crystal system.
Formation & geological history
Formed mainly in sedimentary environments as beds in evaporite deposits or within limestone and sandstone cavities.
Uses & applications
Primary ore of strontium and used by collectors for display specimens.
Geological facts
Named from the Latin word for celestial due to its delicate blue color, and often forms stunning geodetic clusters.
Field identification & locations
Identified by its distinctive pale blue color, perfect cleavage, and relatively high density; commonly found in Madagascar, Ohio, and Poland.
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