gemstone
Tiger's Eye
Silicon dioxide with crocidolite inclusions (SiO2)
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale, golden-brown to brownish-yellow color with a silky luster, and a trigonal-trapezohedral crystal structure.
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Physical properties
Hardness of 7 on the Mohs scale, golden-brown to brownish-yellow color with a silky luster, and a trigonal-trapezohedral crystal structure.
Formation & geological history
Forms as a metamorphic rock when quartz replaces crocidolite asbestos, preserving its fibrous structure over millions of years.
Uses & applications
Widely used in jewelry, cabochons, ornamental carvings, and as a popular collector specimen.
Geological facts
It exhibits chatoyancy, an optical reflectance effect resembling the slit of a cat's eye.
Field identification & locations
Identified by its distinct golden stripes and silky chatoyancy; commonly found in South Africa and Western Australia.
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