sedimentary
Jasper
Silicon dioxide (SiO2) microcrystalline quartz
AI-generated identification · may be incorrectHardness of 6.5 to 7 on the Mohs scale, opaque green to brown color, waxy to dull luster, and conchoidal fracture with a trigonal crystal system.
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Physical properties
Hardness of 6.5 to 7 on the Mohs scale, opaque green to brown color, waxy to dull luster, and conchoidal fracture with a trigonal crystal system.
Formation & geological history
Formed via the precipitation of silica-rich fluids within sedimentary or volcanic environments, often occurring in ancient marine deposits.
Uses & applications
Used widely in ornamental carvings, cabochons, jewelry, and as a popular specimen for rock collectors.
Geological facts
Green jasper has been utilized since ancient times for talismans and seals due to its durability and rich earth tones.
Field identification & locations
Identified by its opaque appearance, hardness scratching glass, and smooth conchoidal breakage; commonly found globally in riverbeds and mountainous regions.
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