Rock Identifier
Jasper (Microcrystalline quartz (SiO2)) — sedimentary
sedimentary

Jasper

Microcrystalline quartz (SiO2)

AI-generated identification · may be incorrect

Hardness of 7 on the Mohs scale, earthy to vitreous luster, opaque appearance, and conchoidal fracture.

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Physical properties

Hardness of 7 on the Mohs scale, earthy to vitreous luster, opaque appearance, and conchoidal fracture.

Formation & geological history

Formed through the precipitation of silica-rich fluids in sedimentary basins or volcanic environments.

Uses & applications

Widely used for ornamental objects, cabochons, carvings, and as a collectible gemstone.

Geological facts

Jasper has been used since ancient times for seals, talismans, and decorative tools.

Field identification & locations

Identified by its opaque nature and rich colors; commonly found in riverbeds and mountainous regions.