Rock Identifier
Jasper (Silicon dioxide (SiO2)) — mineral
mineral

Jasper

Silicon dioxide (SiO2)

AI-generated identification · may be incorrect

Hardness of 6.5 to 7 on the Mohs scale, earthy to vitreous luster, opaque appearance, and conchoidal fracture.

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Physical properties

Hardness of 6.5 to 7 on the Mohs scale, earthy to vitreous luster, opaque appearance, and conchoidal fracture.

Formation & geological history

Formed from silica-rich fluids precipitating in sedimentary or volcanic environments over millions of years.

Uses & applications

Used primarily for ornamental carvings, polished cabochons in jewelry, and decorative stone items.

Geological facts

Jasper has been used since ancient times for talismans, seals, and weaponry components due to its toughness.

Field identification & locations

Identified by its microcrystalline quartz structure and opaque, colorful patterns; commonly found worldwide in riverbeds and ancient volcanic deposits.