sedimentary
Red Jasper
Microcrystalline Quartz (SiO2)
AI-generated identification · may be incorrectHardness of 6.5-7 on the Mohs scale, opaque red to brownish-red color, vitreous to dull luster, and conchoidal fracture.
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Physical properties
Hardness of 6.5-7 on the Mohs scale, opaque red to brownish-red color, vitreous to dull luster, and conchoidal fracture.
Formation & geological history
Formed through the hydrothermal deposition of silica-rich fluids or accumulation of silica-rich radiolarian ooze in marine environments.
Uses & applications
Commonly used in ornamental carvings, cabochons, jewelry, and polished collector specimens.
Geological facts
Red jasper has been used since antiquity for talismans and seals due to its durability and rich color.
Field identification & locations
Identified by its deep red color, lack of cleavage, waxy luster, and scratch resistance to steel; found worldwide in hydrothermal veins and sedimentary deposits.
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