Rock Identifier
Tiger's Eye (Silicon Dioxide (Quartz pseudomorph after crocidolite)) — mineral
mineral

Tiger's Eye

Silicon Dioxide (Quartz pseudomorph after crocidolite)

AI-generated identification · may be incorrect

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

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Physical properties

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

Formation & geological history

Formed when quartz gradually replaces the fibrous mineral crocidolite, preserving its chatoyant fibrous structure over millions of years.

Uses & applications

Widely used in jewelry, ornamental carvings, and holistic healing practices due to its striking chatoyancy.

Geological facts

Tiger's eye exhibits chatoyancy, an optical reflectance effect resembling the slit eye of a cat, caused by parallel fibrous inclusions.

Field identification & locations

Easily identified by its golden-brown stripes and distinctive cat's-eye light reflection; commonly sourced from South Africa and Australia.