sedimentary
Jasper
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectMohs hardness of 6.5 to 7. Color varies widely due to impurities, often red, brown, or yellow. Exhibits a vitreous to dull luster and a microcrystalline or cryptocrystalline structure with conchoidal fracture.
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Physical properties
Mohs hardness of 6.5 to 7. Color varies widely due to impurities, often red, brown, or yellow. Exhibits a vitreous to dull luster and a microcrystalline or cryptocrystalline structure with conchoidal fracture.
Formation & geological history
Forms through the precipitation of silica from aqueous solutions or volcanic ash accumulation, often in sedimentary or hydrothermal environments over millions of years.
Uses & applications
Widely used for ornamental carvings, jewelry, cabochons, and decorative items.
Geological facts
Jasper has been used since ancient times for talismans, seals, and weaponry components like arrowheads due to its durability.
Field identification & locations
Identified by its waxy luster, opaque nature, and conchoidal fracture. Commonly found in riverbeds, hydrothermal veins, and sedimentary rock formations worldwide.
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