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 yellow, brown, or red, and a conchoidal fracture.
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Physical properties
Hardness of 6.5-7 on the Mohs scale, opaque luster, various earth tones of yellow, brown, or red, and a conchoidal fracture.
Formation & geological history
Formed from silica-rich sediments or volcanic ash precipitating in marine or terrestrial environments over millions of years.
Uses & applications
Widely utilized for ornamental carvings, polished cabochons in jewelry, and decorative stone objects.
Geological facts
Jasper has been used since ancient times for talismans, seals, and weaponry like arrowheads due to its toughness.
Field identification & locations
Identified by its waxy luster, opacity, and smooth conchoidal breakage; commonly found in riverbeds and mountainous regions worldwide.
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Sedimentary Mudrock (SiO2, Al2O3 base with clay minerals)
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