sedimentary
Jasper
Silicon dioxide (SiO2)
AI-generated identification · may be incorrectHardness of 6.5 to 7 on the Mohs scale, opaque luster, microcrystalline quartz structure with conchoidal fracture.
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Physical properties
Hardness of 6.5 to 7 on the Mohs scale, opaque luster, microcrystalline quartz structure with conchoidal fracture.
Formation & geological history
Formed through the silification of sedimentary or volcanic rocks where silica-rich fluids replace organic material.
Uses & applications
Widely used for ornamental carvings, cabochons, jewelry, and as a collector's mineral specimen.
Geological facts
Jasper has been used since antiquity to create seals, signet rings, and intricate ornamental weapons or tools.
Field identification & locations
Identified by its opaque, multicolored bands or patterns and hardness that scratches glass; commonly found worldwide in riverbeds and ancient hydrothermal veins.
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