sedimentary
Jasper
Microcrystalline Quartz (SiO2)
AI-generated identification · may be incorrectHardness of 6.5 to 7 on the Mohs scale, opaque luster, various earthy colors, and conchoidal fracture.
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Physical properties
Hardness of 6.5 to 7 on the Mohs scale, opaque luster, various earthy colors, and conchoidal fracture.
Formation & geological history
Formed by the accumulation of silica-rich sediments or silica precipitation in marine environments, often associated with hydrothermal activity or volcanic ash.
Uses & applications
Used widely in ornamental carvings, jewelry, cabochons, and as a decorative stone in architecture.
Geological facts
Jasper has been used since ancient times for talismans, seals, and weaponry like arrowheads due to its toughness.
Field identification & locations
Identified easily by its opaque nature and waxy luster; found globally in ancient riverbeds, sedimentary deposits, and volcanic regions.
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Sedimentary Mudrock (SiO2, Al2O3 base with clay minerals)
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