sedimentary
Red Jasper
Silicon dioxide with iron inclusions (SiO2)
AI-generated identification · may be incorrectHardness of 6.5 to 7 on the Mohs scale, opaque red to brownish-red color with dull to vitreous luster, microcrystalline quartz structure.
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Physical properties
Hardness of 6.5 to 7 on the Mohs scale, opaque red to brownish-red color with dull to vitreous luster, microcrystalline quartz structure.
Formation & geological history
Formed through the hydrothermal deposition of silica-rich fluids or precipitation in marine environments, often dating from the Precambrian era.
Uses & applications
Used primarily for ornamental carvings, jewelry, tumbled stones, and decorative lapidary work.
Geological facts
Red jasper has been used since ancient times for talismans, seals, and weaponry components due to its toughness and striking color.
Field identification & locations
Easily identified by its deep red color, conchoidal fracture, and lack of visible crystal structure; commonly found in riverbeds and mountainous regions worldwide.
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