Rock Identifier
Tiger's Eye Quartz (Silicon Dioxide with Crocidolite inclusions (SiO2)) — mineral
mineral

Tiger's Eye Quartz

Silicon Dioxide with Crocidolite inclusions (SiO2)

AI-generated identification · may be incorrect

Hardness of 7 on the Mohs scale, golden-brown to yellow-brown color, silky luster, and a microcrystalline fibrous crystal structure.

Identified More mineral →
Explore Tiger's Eye Quartz in the encyclopedia →

Identify your own rocks.

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

Physical properties

Hardness of 7 on the Mohs scale, golden-brown to yellow-brown color, silky luster, and a microcrystalline fibrous crystal structure.

Formation & geological history

Formed via pseudomorphosis, where quartz slowly replaces fibrous crocidolite asbestos over millions of years in hydrothermal environments.

Uses & applications

Widely used in cabochons, beads, decorative carvings, and metaphysical jewelry.

Geological facts

The characteristic chatoyancy or cat-eye effect is caused by the parallel arrangement of quartz fibers reflecting light.

Field identification & locations

Easily identified by its distinctive golden sheen and banded fibrous appearance; primarily mined in South Africa and Western Australia.