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

Red Jasper

Microcrystalline Quartz (SiO2)

AI-generated identification · may be incorrect

Mohs hardness of 6.5 to 7, opaque brick-red color due to iron inclusions, waxy luster, and microgranular crystal structure.

Identified More sedimentary →
Explore Red Jasper in the encyclopedia →

Identify your own rocks.

Get a report just like this from any photo, free.

Physical properties

Mohs hardness of 6.5 to 7, opaque brick-red color due to iron inclusions, waxy luster, and microgranular crystal structure.

Formation & geological history

Forms from the silica-rich precipitation of marine organisms or hydrothermal solutions, often in ancient ocean basins.

Uses & applications

Commonly used for ornamental carvings, polished cabochons, jewelry, and metaphysical healing practices.

Geological facts

Ancient cultures frequently used red jasper amulets for protection and strength in battle.

Field identification & locations

Identified by its deep red color, conchoidal fracture, and inability to be scratched by steel; found worldwide in riverbeds and sedimentary deposits.