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

Jasper

Microcrystalline Quartz (SiO2)

AI-generated identification · may be incorrect

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

Identified More sedimentary →
Explore Jasper in the encyclopedia →

Identify your own rocks.

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

Physical properties

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

Formation & geological history

Formed through the silification of sedimentary or volcanic deposits, often precipitated from silica-rich fluids over millions of years.

Uses & applications

Used primarily in ornamental carvings, cabochons, and jewelry making.

Geological facts

Jasper has been utilized since ancient times for talismans, seals, and decorative art due to its durability and rich color patterns.

Field identification & locations

Identified by its microcrystalline structure, opacity, and lack of cleavage; commonly found in riverbeds and ancient hydrothermal veins worldwide.