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

Jasper

Microcrystalline Quartz (SiO2)

AI-generated identification · may be incorrect

Hardness of 6.5-7 on Mohs scale; displays opaque reddish-brown coloration with a waxy luster and no visible crystal structure.

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Physical properties

Hardness of 6.5-7 on Mohs scale; displays opaque reddish-brown coloration with a waxy luster and no visible crystal structure.

Formation & geological history

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

Uses & applications

Widely used for ornamental carvings, polished cabochons in jewelry, and as a popular specimen for mineral collectors.

Geological facts

Jasper has been utilized since ancient times for talismans, seals, and weaponry components across various civilizations.

Field identification & locations

Identified by its conchoidal fracture, opaque appearance, and lack of scratching from steel; commonly found in riverbeds and mountainous regions worldwide.