mineral
Celestine Geode
Celestine (Strontium Sulfate, SrSO4)
AI-generated identification · may be incorrectHardness of 3-3.5 on Mohs scale; pale blue, white, or colorless; vitreous to pearly luster; orthorhombic crystal system with perfect cleavage.
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Physical properties
Hardness of 3-3.5 on Mohs scale; pale blue, white, or colorless; vitreous to pearly luster; orthorhombic crystal system with perfect cleavage.
Formation & geological history
Formed through the precipitation of strontium sulfate in sedimentary rocks like limestone and in hydrothermal veins, often within cavities or nodules.
Uses & applications
Used primarily as a mineral specimen for collectors, in the extraction of strontium, and occasionally in ornamental carvings.
Geological facts
Named from the Latin word 'caelestis' meaning celestial, due to its delicate sky-blue color. Madagascar produces some of the world's finest crystal clusters.
Field identification & locations
Identified by its distinct soft blue color, low hardness, and higher specific gravity compared to quartz. Common in Madagascar, USA, and Italy.
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