Tiger's Eye

Physical Properties

Hardness: 6.5-7.0 (Mohs); Color: Golden to red-brown; Luster: Silky; Crystal structure: Trigonal (fibrous aggregate); Cleavage: None; Specific gravity: 2.64-2.71

Formation & Geological History

Formed through the replacement of fibrous blue crocidolite asbestos by silica (quartz), a process called pseudomorphism, usually in iron-rich metamorphic rocks.

Uses & Applications

Primarily used in jewelry, lapidary arts (cabochons and beads), carvings, and as a popular collector's stone or metaphysical tool.

Geological Facts

Tiger's eye exhibits a unique optical effect known as chatoyancy, where reflected light creates a moving silky band due to the preserved fibrous structure of the original crocidolite crystals.

Field Identification & Locations

Identify in the field by its distinct chatoyant bands and golden-yellow color. Major deposits are found in South Africa, Australia, India, and Namibia.

Identified on: 5/2/2026

Mode: Standard