sedimentary
Jasper
Silicon Dioxide (Microcrystalline Quartz, SiO2)
AI-generated identification · may be incorrectHardness of 6.5 to 7 on the Mohs scale. Displays earthy to vitreous luster, opaque diaphaneity, and a conchoidal fracture with no distinct cleavage.
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Physical properties
Hardness of 6.5 to 7 on the Mohs scale. Displays earthy to vitreous luster, opaque diaphaneity, and a conchoidal fracture with no distinct cleavage.
Formation & geological history
Forms from silica-rich fluids precipitating in sedimentary basins or volcanic cavities over millions of years.
Uses & applications
Used primarily in ornamental carvings, cabochons, polished decorative objects, and lapidary art.
Geological facts
Jasper has been utilized since ancient times for talismans, seals, and jewelry across various global civilizations.
Field identification & locations
Identified by its dense, opaque coloration and resistance to scratching by steel; commonly found in riverbeds and mountainous hydrothermal deposits.
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