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

Green Jasper

Microcrystalline Quartz (SiO2)

AI-generated identification · may be incorrect

Hardness of 6.5-7 on Mohs scale, opaque green color, waxy to vitreous luster, trigonal crystal system with a compact microfibrous structure.

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Physical properties

Hardness of 6.5-7 on Mohs scale, opaque green color, waxy to vitreous luster, trigonal crystal system with a compact microfibrous structure.

Formation & geological history

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

Uses & applications

Used in ornamental carvings, cabochons, jewelry, and polished collector specimens.

Geological facts

Green jasper has been used since ancient times for talismans and seals due to its durability and rich earth tone.

Field identification & locations

Identified by its conchoidal fracture, lack of cleavage, and green coloration; commonly found in riverbeds and mountainous regions worldwide.