Rock Identifier
Tiger's Eye (SiO2 (Silicon Dioxide)) — mineral
mineral

Tiger's Eye

SiO2 (Silicon Dioxide)

AI-generated identification · may be incorrect

Hardness of 7 on the Mohs scale, golden to brown color, silky luster, and a microcrystalline structure with chatoyancy.

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Physical properties

Hardness of 7 on the Mohs scale, golden to brown color, silky luster, and a microcrystalline structure with chatoyancy.

Formation & geological history

Formed when quartz chemically replaces fibrous crocidolite asbestos, typically in metamorphic environments.

Uses & applications

Widely used in making cabochons, beads, jewelry, and ornamental carvings.

Geological facts

Its distinctive cat-eye effect is caused by parallel fibers of silica reflecting light.

Field identification & locations

Easily identified by its golden-brown stripes and shimmering chatoyancy; primarily sourced from South Africa and Australia.