sedimentary
Red Jasper with Quartz Vein
Microcrystalline quartz (SiO2)
AI-generated identification · may be incorrectHardness 6.5-7 on the Mohs scale, reddish-brown color with a white quartz inclusion, waxy to vitreous luster, and conchoidal fracture.
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Physical properties
Hardness 6.5-7 on the Mohs scale, reddish-brown color with a white quartz inclusion, waxy to vitreous luster, and conchoidal fracture.
Formation & geological history
Formed from silica-rich sediments or volcanic ash precipitation in marine environments, often later fractured and healed with hydrothermal quartz veins.
Uses & applications
Used for ornamental carvings, cabochons in jewelry, tumbling, and as a popular specimen for mineral collectors.
Geological facts
Jasper has been used since ancient times for talismans and seals. The contrasting white quartz vein indicates a later geological healing event.
Field identification & locations
Easily identified by its opaque red color and hardness that scratches glass. Commonly found in riverbeds, beaches, and mountainous regions worldwide.
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