sedimentary
Green Jasper
Microcrystalline Quartz (SiO2)
AI-generated identification · may be incorrectHardness of 6.5 to 7 on the Mohs scale, earthy green color, opaque with a waxy luster, and conchoidal fracture.
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Physical properties
Hardness of 6.5 to 7 on the Mohs scale, earthy green color, opaque with a waxy luster, and conchoidal fracture.
Formation & geological history
Formed through the precipitation of silica-rich fluids in sedimentary basins or volcanic environments over millions of years.
Uses & applications
Used in ornamental carvings, cabochons, jewelry, and as a popular specimen for mineral collectors.
Geological facts
Green jasper has been used since ancient times for talismans, seals, and weaponry components due to its toughness.
Field identification & locations
Identified by its olive to deep green color, lack of cleavage, and high hardness that scratches glass. Commonly found in riverbeds and mountainous regions worldwide.
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