sedimentary
Jasper
Microcrystalline quartz, SiO2
AI-generated identification · may be incorrectHardness of 6.5 to 7 on the Mohs scale, opaque luster, trigonal crystal system, and various earthy colors due to mineral impurities.
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Physical properties
Hardness of 6.5 to 7 on the Mohs scale, opaque luster, trigonal crystal system, and various earthy colors due to mineral impurities.
Formation & geological history
Formed through the silification of sedimentary or volcanic deposits, rich in silica-bearing fluids, over millions of years.
Uses & applications
Used primarily for ornamental carvings, polished cabochons, decorative items, and lapidary collections.
Geological facts
Jasper has been used since ancient times to create seals, talismans, and intricate jewelry across various civilizations.
Field identification & locations
Identified by its microcrystalline structure, conchoidal fracture, and lack of transparency; commonly found in riverbeds and mountainous regions worldwide.
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