sedimentary
Jasper
Cryptocrystalline quartz, SiO2
AI-generated identification · may be incorrectHardness of 6.5 to 7 on the Mohs scale, opaque luster, microcrystalline structure, and displays conchoidal fracture with varied earthy colors.
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Physical properties
Hardness of 6.5 to 7 on the Mohs scale, opaque luster, microcrystalline structure, and displays conchoidal fracture with varied earthy colors.
Formation & geological history
Formed through the silification of sedimentary or volcanic rocks where silica-rich fluids replace organic or mineral material.
Uses & applications
Widely used for ornamental carvings, polished cabochons, jewelry, and as a popular specimen for mineral collectors.
Geological facts
Jasper has been utilized by ancient civilizations since the 4th millennium BC for making seals, drills, and ritual ornaments.
Field identification & locations
Identified easily by its waxy luster and opaque colorful patterns; commonly found globally in ancient riverbeds, volcanic deposits, and hydrothermal veins.
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