sedimentary
Jasper
Microcrystalline Quartz (SiO2)
AI-generated identification · may be incorrectHardness of 6.5 to 7 on the Mohs scale, red to brown or multicolored, waxy luster, and conchoidal fracture.
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Physical properties
Hardness of 6.5 to 7 on the Mohs scale, red to brown or multicolored, waxy luster, and conchoidal fracture.
Formation & geological history
Formed from silica-rich sediments or volcanic ash precipitation in marine or terrestrial environments.
Uses & applications
Used in ornamental carvings, cabochons, jewelry, and as a collectible decorative stone.
Geological facts
Jasper has been used since ancient times for seals, talismans, and decorative items due to its durability and rich color.
Field identification & locations
Identify by its opaque appearance, hardness scratching glass, and smooth waxy feel. Commonly found worldwide in hydrothermal veins and sedimentary deposits.
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Sedimentary Mudrock (SiO2, Al2O3 base with clay minerals)
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