mineral
Jasper
Silicon dioxide (Microcrystalline quartz, SiO2)
AI-generated identification · may be incorrectHardness of 6.5 to 7 on the Mohs scale, waxy to dull luster, opaque transparency, and conchoidal fracture without distinct cleavage.
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Physical properties
Hardness of 6.5 to 7 on the Mohs scale, waxy to dull luster, opaque transparency, and conchoidal fracture without distinct cleavage.
Formation & geological history
Formed through the precipitation of silica-rich fluids in sedimentary or volcanic environments, often over millions of years.
Uses & applications
Widely used for ornamental carvings, polished cabochons in jewelry, and geological specimen collecting.
Geological facts
Jasper has been utilized by ancient civilizations since the 4th millennium BC for seals, drills, and amulets.
Field identification & locations
Easily identified by its opaque nature and hardness that scratches glass; frequently found in alluvial gravels and hydrothermal veins globally.
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