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

Jasper

Microcrystalline Quartz (SiO2)

AI-generated identification · may be incorrect

Hardness of 6.5 to 7 on the Mohs scale, opaque luster, various earth-tone colors, and conchoidal fracture.

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Physical properties

Hardness of 6.5 to 7 on the Mohs scale, opaque luster, various earth-tone colors, and conchoidal fracture.

Formation & geological history

Formed through the precipitation of silica-rich fluids in sedimentary or volcanic environments over millions of years.

Uses & applications

Used primarily for ornamental carvings, polished lapidary specimens, and jewelry.

Geological facts

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

Field identification & locations

Identified by its opaque appearance, hardness scratching glass, and smooth tumbled texture found in riverbeds worldwide.