Tiger's Eye

Physical Properties

Hardness: 7 on Mohs scale; Color: golden-brown to yellow with dark bands; Luster: silky or vitreous; Crystal system: trigonal/fibrous; Features distinct chatoyancy (cat's-eye effect).

Formation & Geological History

Formed through a process called pseudomorphism, where quartz replaces the asbestos mineral crocidolite while retaining its original fibrous structure. Primarily found in metamorphosed iron formations.

Uses & Applications

Extensively used in jewelry (cabochons, beads), decorative carvings, meditation stones, and as a popular collectible lapidary material.

Geological Facts

The chatoyant effect is caused by the reflection of light off the parallel mineral fibers within the stone. In its natural blue state before oxidation turns it brown, it is known as Hawk's Eye.

Field Identification & Locations

Identify by rotating the stone under light to observe the shifting gold bands. Found primarily in South Africa and Western Australia. It is a traditional protective stone in many cultures.

Identified on: 4/29/2026

Mode: Standard