mineral
Celestine Geode
Strontium Sulfate (SrSO4)
AI-generated identification · may be incorrectHardness 3 to 3.5 on Mohs scale. Pale blue to colorless, vitreous luster, orthorhombic crystal system, perfect cleavage in three directions, specific gravity around 3.96.
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Physical properties
Hardness 3 to 3.5 on Mohs scale. Pale blue to colorless, vitreous luster, orthorhombic crystal system, perfect cleavage in three directions, specific gravity around 3.96.
Formation & geological history
Formed in sedimentary rock cavities and vugs through precipitation from strontium-rich aqueous solutions, often within limestone or sandstone formations.
Uses & applications
Used primarily as a mineral specimen for collectors, for extracting strontium compounds, and occasionally in ornamental carvings and jewelry.
Geological facts
Celestine is the primary commercial ore of the metal strontium. Famous large crystal vugs are found in Madagascar and Ohio, USA.
Field identification & locations
Identified easily by its characteristic pale blue color, high density, and crystalline interior cavity. Commonly found in sedimentary deposits worldwide.
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