sedimentary
Red Jasper
Microcrystalline Quartz (SiO2)
AI-generated identification · may be incorrectMohs hardness of 6.5 to 7, earthy to vitreous luster, opaque red to brownish-red color with distinct banding, and conchoidal fracture.
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Physical properties
Mohs hardness of 6.5 to 7, earthy to vitreous luster, opaque red to brownish-red color with distinct banding, and conchoidal fracture.
Formation & geological history
Formed through the silification of sedimentary deposits or volcanic ash, typically rich in iron oxides, occurring in hydrothermal veins or marine environments.
Uses & applications
Used widely in ornamental carvings, cabochons, jewelry, and polished collector specimens.
Geological facts
Red jasper has been used since ancient times for talismans, seals, and weaponry components by various civilizations due to its durability.
Field identification & locations
Identified by its rich red color, opaque nature, and inability to be scratched by a steel knife; commonly found worldwide in riverbeds and mountainous regions.
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