sedimentary
Jasper
Microcrystalline Quartz (SiO2)
AI-generated identification · may be incorrectHardness of 6.5 to 7 on the Mohs scale, earthy to vitreous luster, opaque, and conchoidal fracture.
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Physical properties
Hardness of 6.5 to 7 on the Mohs scale, earthy to vitreous luster, opaque, and conchoidal fracture.
Formation & geological history
Formed through the silification of sedimentary or volcanic deposits, often precipitated from silica-rich fluids.
Uses & applications
Used primarily for ornamental carvings, polished cabochons in jewelry, and geological specimen collecting.
Geological facts
Jasper has been used since ancient times for talismans, seals, and various decorative ornaments across many civilizations.
Field identification & locations
Identified by its opaque nature and fine-grained microcrystalline structure; commonly found in riverbeds and ancient seabed deposits.
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