mineral

Tiger's Eye (Mineral Collection)

Tiger's Eye (SiO2 with crocidolite inclusions)

Hardness: 6.5-7.0 (Mohs). Color: Golden yellow to deep brown. Luster: Silky to chatoyant. Crystal structure: Trigonal/fibrous. Specific gravity: 2.64-2.71.

Hardness: 6
Color: Golden yellow to deep brown
Luster: Silky to chatoyant

Identified April 15, 2026More mineral →

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Physical properties

Hardness: 6.5-7.0 (Mohs). Color: Golden yellow to deep brown. Luster: Silky to chatoyant. Crystal structure: Trigonal/fibrous. Specific gravity: 2.64-2.71.

Formation & geological history

Formed when quartz replaces crocidolite (blue asbestos) through a process of pseudomorphism, often found in metamorphic environments associated with iron formations.

Uses & applications

Predominantly used for jewelry (cabochons), ornamental carvings, and as a popular specimen for rock collectors.

Geological facts

The 'moving' light effect is called chatoyancy. It is a member of the quartz group and is famously found in the Griqualand West region of South Africa.

Field identification & locations

Identified by its distinctive golden-brown bands and silky luster that changes angle with light. Commonly found in South Africa, Australia, India, and the USA.

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