mineral
Tiger's Eye
Quartz pseudomorph after crocidolite, SiO2
AI-generated identification · may be incorrectHardness of 7 on Mohs scale, golden-brown to yellow-brown color with a distinct silky chatoyant luster, trigonal crystal system.
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Physical properties
Hardness of 7 on Mohs scale, golden-brown to yellow-brown color with a distinct silky chatoyant luster, trigonal crystal system.
Formation & geological history
Formed when quartz deposits replace original fibrous crocidolite asbestos veins during low-grade metamorphism.
Uses & applications
Widely used in jewelry, cabochons, beads, and ornamental carvings.
Geological facts
The characteristic cat's-eye effect is caused by parallel intergrowth of quartz crystals and altered amphibole fibers.
Field identification & locations
Identified by its distinctive golden brown stripes and shimmering chatoyancy; commonly mined in South Africa and Australia.
