sedimentary
Green Jasper
Microcrystalline Quartz (SiO2)
AI-generated identification · may be incorrectHardness of 6.5 to 7 on the Mohs scale. Exhibits a dull to greasy luster with opaque green coloration and conchoidal fracture.
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Physical properties
Hardness of 6.5 to 7 on the Mohs scale. Exhibits a dull to greasy luster with opaque green coloration and conchoidal fracture.
Formation & geological history
Formed through the hydrothermal deposition of silica-rich fluids or precipitation in marine environments, often dating back to the Precambrian era.
Uses & applications
Used primarily for ornamental carvings, cabochons, polished display stones, and lapidary art.
Geological facts
Green jasper was historically used by ancient civilizations for talismans, amulets, and sealing stamps due to its toughness.
Field identification & locations
Identified easily by its lack of cleavage, waxy appearance, and resistance to steel scratching; commonly found in riverbeds and sedimentary deposits worldwide.
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