gemstone
Tiger's Eye
Silicon dioxide with crocidolite inclusions (SiO2)
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale, golden to dark brown color with chatoyant luster, trigonal crystal system, and indistinct cleavage.
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Physical properties
Hardness of 7 on the Mohs scale, golden to dark brown color with chatoyant luster, trigonal crystal system, and indistinct cleavage.
Formation & geological history
Formed as quartz replaces fibrous crocidolite asbestos through hydrothermal activity and weathering over millions of years.
Uses & applications
Widely used in ornamental carvings, cabochons, beads, and holistic jewelry.
Geological facts
The characteristic silky sheen, or chatoyancy, is caused by parallel intergrown quartz crystals and altered amphibole fibers.
Field identification & locations
Easily identified by its distinctive golden-brown stripes and moving cat's-eye light effect; primarily sourced from South Africa and Australia.
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