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, waxy to vitreous luster, and a trigonal crystal system with microcrystalline structure.
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Physical properties
Hardness of 6.5 to 7 on the Mohs scale, opaque red to reddish-brown color, waxy to vitreous luster, and a trigonal crystal system with microcrystalline structure.
Formation & geological history
Formed through the silification of sedimentary deposits or volcanic ash, where silica-rich fluids replace organic material or fill cavities.
Uses & applications
Widely used for ornamental carvings, polished cabochons in jewelry, and as a popular specimen for rock collectors.
Geological facts
Red jasper has been used since ancient times for amulets and seals, often associated with strength and endurance across various cultures.
Field identification & locations
Identify by its rich red color, conchoidal fracture, and lack of visible crystal grains. Commonly found in stream beds, hydrothermal veins, and ancient marine deposits worldwide.
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