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 yellow-brown color with a silky luster, and a pseudomorph habit replacing fibrous crocidolite.
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Physical properties
Hardness of 7 on the Mohs scale, golden-brown to yellow-brown color with a silky luster, and a pseudomorph habit replacing fibrous crocidolite.
Formation & geological history
Formed when quartz constantly replaces fibrous crocidolite (blue asbestos) during hydrothermal alteration, occurring primarily in South Africa and Australia.
Uses & applications
Widely used in jewelry making, ornamental carvings, and as a popular collectible lapidary stone.
Geological facts
Tiger's eye exhibits a distinct chatoyancy (cat's eye effect) caused by the parallel arrangement of quartz fibers reflecting light.
Field identification & locations
Easily identified by its golden fibrous bands and silky chatoyant sheen; commonly sourced from Western Australia and South Africa.
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