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 chatoyant luster, trigonal crystal system, and a specific gravity of 2.64-2.71.

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Physical properties

Hardness of 7 on the Mohs scale, golden-brown to yellow-brown color with chatoyant luster, trigonal crystal system, and a specific gravity of 2.64-2.71.

Formation & geological history

Formed when quartz replaces the original fibrous mineral crocidolite through silica infiltration, commonly occurring in metamorphic environments.

Uses & applications

Widely used in jewelry, ornamental carvings, and holistic crystal collections.

Geological facts

The distinct silky sheen, known as chatoyancy, is caused by the parallel alignment of quartz-replaced fibrous inclusions.

Field identification & locations

Easily identified by its characteristic golden stripes and moving cat's-eye light effect when rotated. Major deposits are found in South Africa and Australia.