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 microcrystalline quartz crystal structure. It exhibits a distinct chatoyant effect when polished.
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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 microcrystalline quartz crystal structure. It exhibits a distinct chatoyant effect when polished.
Formation & geological history
Formed when quartz pseudomorphically replaces the fibrous mineral crocidolite as it alters into iron oxides, occurring primarily in hydrothermal veins and altered schist.
Uses & applications
Widely used in cabochons, beads, decorative carvings, and jewelry making due to its striking chatoyant optical properties.
Geological facts
Tiger's eye is a member of the quartz group known for its cat-eye effect caused by parallel fibrous inclusions. Major deposits are found in South Africa and Western Australia.
Field identification & locations
Identified by its golden-brown stripes and shimmering chatoyancy that shifts with light movement. Commonly collected worldwide and sourced heavily from South Africa.
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