sedimentary
Jasper
Microcrystalline quartz (SiO2)
AI-generated identification · may be incorrectHardness of 6.5-7 on the Mohs scale, opaque luster, various red, brown, or yellow colors, and a conchoidal fracture.
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Physical properties
Hardness of 6.5-7 on the Mohs scale, opaque luster, various red, brown, or yellow colors, and a conchoidal fracture.
Formation & geological history
Formed from the precipitation of silica-rich fluids in sedimentary or volcanic environments over millions of years.
Uses & applications
Used primarily in lapidary arts, ornamental carvings, and affordable jewelry.
Geological facts
Jasper has been used since ancient times for seals, talismans, and decorative items by various civilizations.
Field identification & locations
Easily identified by its opaque nature and rich earthy colors; commonly found in riverbeds and mountainous regions worldwide.
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Sedimentary Mudrock (SiO2, Al2O3 base with clay minerals)
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