sedimentary
Red Jasper
Microcrystalline Quartz, SiO2
AI-generated identification · may be incorrectHardness of 6.5-7 on the Mohs scale, opaque red to reddish-brown color, waxy to dull luster, and a microcrystalline or cryptocrystalline crystal structure with conchoidal fracture.
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Physical properties
Hardness of 6.5-7 on the Mohs scale, opaque red to reddish-brown color, waxy to dull luster, and a microcrystalline or cryptocrystalline crystal structure with conchoidal fracture.
Formation & geological history
Forms from the precipitation of silica-rich fluids in sedimentary environments or hydrothermal veins, often accumulating in marine beds.
Uses & applications
Widely used for ornamental carvings, polished cabochons in jewelry, and as a popular collector specimen.
Geological facts
Red jasper has been used since ancient times for amulets, seals, and weaponry, mentioned historically in various cultures for its protective qualities.
Field identification & locations
Identified by its rich red color, opacity, and hardness that scratches glass; commonly found in worldwide deposits including India, Brazil, Russia, and the USA.
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