sedimentary
Green Jasper
Microcrystalline Quartz (SiO2)
AI-generated identification · may be incorrectHardness of 6.5 to 7 on the Mohs scale, various shades of green, vitreous to dull luster, and conchoidal fracture.
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Physical properties
Hardness of 6.5 to 7 on the Mohs scale, various shades of green, vitreous to dull luster, and conchoidal fracture.
Formation & geological history
Formed through the hydrothermal deposition of silica-rich fluids in sedimentary or volcanic environments over millions of years.
Uses & applications
Widely used in ornamental carvings, cabochons, jewelry, and polished collector specimens.
Geological facts
Green jasper has been used since ancient times for talismans, seals, and decorative ornamentation.
Field identification & locations
Identify by its waxy luster, hardness that scratches glass, and opaque green coloration; found worldwide in riverbeds and mountainous regions.
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