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 a conchoidal fracture.
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Physical properties
Hardness of 6.5 to 7 on the Mohs scale, opaque luster, various earthy colors, and a conchoidal fracture.
Formation & geological history
Forms from the precipitation of silica-rich fluids in sedimentary or volcanic environments over millions of years.
Uses & applications
Used primarily for ornamental objects, cabochons, carvings, and jewelry making.
Geological facts
Ancient civilizations valued jasper as a sacred talisman and utilized it widely for making seals and signet rings.
Field identification & locations
Identify by its opaque nature, waxy luster, and lack of cleavage. Commonly found in riverbeds and mountainous regions worldwide.
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