sedimentary
Green Jasper
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectMohs hardness of 6.5 to 7, dull to vitreous luster, opaque green color, and a microcrystalline quartz structure.
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Physical properties
Mohs hardness of 6.5 to 7, dull to vitreous luster, opaque green color, and a microcrystalline quartz structure.
Formation & geological history
Formed through the hydrothermal deposition of silica-rich fluids or precipitation in marine environments.
Uses & applications
Used in ornamental carvings, cabochons, jewelry making, and as a collector specimen.
Geological facts
Green jasper has been used since ancient times for talismans, seals, and decorative ornamentation across various civilizations.
Field identification & locations
Identified by its waxy-to-dull luster, microcrystalline fracture, and hardness that scratches glass; commonly found in riverbeds and mountainous regions.
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