sedimentary
Jasper
Microcrystalline Quartz (SiO2)
AI-generated identification · may be incorrectHardness of 6.5-7 on the Mohs scale, opaque luster, various earth-tone colors due to mineral impurities, and a conchoidal fracture.
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Physical properties
Hardness of 6.5-7 on the Mohs scale, opaque luster, various earth-tone colors due to mineral impurities, and a conchoidal fracture.
Formation & geological history
Formed from silica-rich sediments or volcanic ash, often deposited in marine environments and altered over millions of years.
Uses & applications
Widely used for ornamental objects, cabochons, carvings, and as a popular specimen for mineral collectors.
Geological facts
Jasper has been utilized since ancient times for tools, seals, and jewelry across various civilizations.
Field identification & locations
Identify in the field by its waxy luster, opacity, and hardness that scratches glass. Found worldwide in sedimentary and volcanic rock formations.
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Sedimentary Mudrock (SiO2, Al2O3 base with clay minerals)
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