sedimentary
Red Jasper
Microcrystalline Quartz (SiO2)
AI-generated identification · may be incorrectHardness of 6.5 to 7 on the Mohs scale, opaque red to reddish-brown color, vitreous luster, and a microcrystalline or cryptocrystalline crystal structure with conchoidal fracture.
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Physical properties
Hardness of 6.5 to 7 on the Mohs scale, opaque red to reddish-brown color, vitreous luster, and a microcrystalline or cryptocrystalline crystal structure with conchoidal fracture.
Formation & geological history
Formed through the hydrothermal deposition or chemical precipitation of silica-rich fluids in marine or sedimentary environments, often dating back to the Precambrian era.
Uses & applications
Widely used for tumbled stones, cabochons, ornamental carvings, and jewelry making due to its durability and rich color.
Geological facts
Red jasper has been used since ancient times for talismans and seals, prized by ancient civilizations like the Egyptians and Greeks for its protective and grounding symbolism.
Field identification & locations
Easily identified by its deep red banded or uniform appearance and high hardness that scratches glass; commonly found in riverbeds, hydrothermal veins, and ancient marine deposits worldwide.
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