Red Tiger's Eye

Physical Properties

Hardness: 6.5–7 on Mohs scale; Color: Reddish-brown to maroon; Luster: Silky; Crystal structure: Trigonal (fibrous); Cleavage: None; Specific gravity: 2.64–2.71

Formation & Geological History

Formed through the pseudomorphism of crocidolite fibers by quartz. Red Tiger's Eye is often the result of natural or artificial heating of golden Tiger's Eye, which oxidizes the iron content. Major deposits are found in Precambrian rock formations.

Uses & Applications

Primarily used as a gemstone in jewelry (cabochons, beads, rings), as a decorative stone in carvings, and by collectors of metaphysical crystals.

Geological Facts

Also known as Ox's Eye or Bull's Eye. While it can occur naturally through geological heat, most red tiger's eye on the market is achieved by gently heat-treating the yellow/gold variety.

Field Identification & Locations

Identify in the field by its distinct chatoyancy (the 'cat's eye' effect) and fibrous layers. Commonly found in South Africa, Western Australia, Namibia, and India.

Identified on: 4/23/2026

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