sedimentary
Jasper
Microcrystalline Quartz (SiO2)
AI-generated identification · may be incorrectHardness of 6.5-7 on the Mohs scale, opaque luster, various earth tones of color, and conchoidal fracture.
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Physical properties
Hardness of 6.5-7 on the Mohs scale, opaque luster, various earth tones of color, and conchoidal fracture.
Formation & geological history
Formed from silica-rich sediments or volcanic ash, often deposited in marine environments or hydrothermal veins.
Uses & applications
Used widely in ornamental carvings, jewelry, and decorative polished stones.
Geological facts
Jasper has been used since ancient times for talismans, seals, and weaponry components like arrowheads.
Field identification & locations
Identified by its opaque appearance, smooth polished feel, and lack of cleavage; found globally in riverbeds and mountainous regions.
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