gemstone
Tumbled Tiger's Eye
Silicon dioxide with crocidolite inclusions (SiO2)
AI-generated identification · may be incorrectHardness 7 on the Mohs scale, golden-brown to brown color with a silky luster, and a microcrystalline quartz crystal structure. Exhibits a chatoyant optical effect.
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Physical properties
Hardness 7 on the Mohs scale, golden-brown to brown color with a silky luster, and a microcrystalline quartz crystal structure. Exhibits a chatoyant optical effect.
Formation & geological history
Formed as the fibrous mineral crocidolite is progressively replaced by silica-rich solutions through pseudomorphous replacement.
Uses & applications
Widely used for tumbled decorative stones, cabochons in jewelry, and ornamental carvings.
Geological facts
Tiger's eye belongs to the quartz group and gets its characteristic shimmering cat-eye effect from parallel fibrous structures.
Field identification & locations
Easily identified by its distinctive golden-brown chatoyancy when moved under light. Commonly sourced from South Africa and Western Australia.
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