gemstone
Tiger's Eye
SiO2 (Quartz pseudomorph after crocidolite)
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale, golden-brown to yellow-blue color, silky luster, and trigonal crystal structure with fibrous cleavage.
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Physical properties
Hardness of 7 on the Mohs scale, golden-brown to yellow-blue color, silky luster, and trigonal crystal structure with fibrous cleavage.
Formation & geological history
Formed when quartz replaces the mineral crocidolite, typically occurring in metamorphic environments over millions of years.
Uses & applications
Widely used in jewelry, decorative carvings, and as a polished collector's stone.
Geological facts
Tiger's eye exhibits chatoyancy, a striking optical reflectance effect resembling a cat's eye.
Field identification & locations
Easily identified by its distinctive golden-brown bands and silky sheen; commonly found in South Africa and Western Australia.
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