sedimentary
Jasper
Microcrystalline quartz (SiO2)
AI-generated identification · may be incorrectHardness 6.5-7 on the Mohs scale, earthy to vitreous luster, opaque red to brown color, trigonal crystal system, conchoidal fracture.
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Physical properties
Hardness 6.5-7 on the Mohs scale, earthy to vitreous luster, opaque red to brown color, trigonal crystal system, conchoidal fracture.
Formation & geological history
Formed from silica-rich fluids precipitating in sedimentary environments or volcanic rocks, often associated with hydrothermal activity.
Uses & applications
Used widely for ornamental carvings, jewelry, lapidary arts, and decorative polished stones.
Geological facts
Jasper has been utilized since ancient times for talismans, seals, and weaponry components across various civilizations.
Field identification & locations
Identified by its dense, opaque coloration and lack of cleavage, commonly found in riverbeds and mountainous regions worldwide.
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