sedimentary
Jasper
Microcrystalline Quartz (SiO2)
AI-generated identification · may be incorrectHardness of 6.5 to 7 on the Mohs scale, opaque luster, various earth-tone colors due to mineral impurities, and conchoidal fracture.
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Physical properties
Hardness of 6.5 to 7 on the Mohs scale, opaque luster, various earth-tone colors due to mineral impurities, and conchoidal fracture.
Formation & geological history
Formed through the silification of sedimentary or volcanic rocks, precipitated from silica-rich fluids in marine or hydrothermal environments.
Uses & applications
Used widely in ornamental carvings, cabochons, jewelry, and polished decorative specimens.
Geological facts
Jasper has been utilized since ancient times for talismans, seals, and weaponry components like arrowheads.
Field identification & locations
Identified by its fine-grained texture, opaque appearance, and lack of crystal cleavage; commonly found in riverbeds and mountainous regions worldwide.
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Sedimentary Mudrock (SiO2, Al2O3 base with clay minerals)
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