Rock Identifier
Tiger's Eye (Inlaid in a band) (SiO2 (Silicon Dioxide with Crocidolite inclusions)) — mineral
mineral

Tiger's Eye (Inlaid in a band)

SiO2 (Silicon Dioxide with Crocidolite inclusions)

Hardness: 6.5–7 on Mohs scale; Color: Golden-brown with silky luster; Crystal structure: Trigonal/Fibrous; Cleavage: None (fracture is conchoidal); Chatoyancy (cat-eye effect).

Hardness
6
Color
Golden-brown with silky luster
Identified More mineral →

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Physical properties

Hardness: 6.5–7 on Mohs scale; Color: Golden-brown with silky luster; Crystal structure: Trigonal/Fibrous; Cleavage: None (fracture is conchoidal); Chatoyancy (cat-eye effect).

Formation & geological history

A metamorphic rock formed through the pseudomorphism of crocidolite (blue asbestos) by quartz. Iron within the stone is oxidized to create the distinctive golden-brown hue. Common in Precambrian formations.

Uses & applications

Primarily used in jewelry (beads, cabochons, ring inlays) and ornamental carvings. It is popular in the 'healing crystal' community and as a decorative stone in high-end accessories.

Geological facts

Tiger's Eye is famous for its chatoyancy, where light reflects off the fibrous structure to create a 'moving' band of light. Romans used to carry it into battle for protection, believing it helped them see through the 'eyes' of the enemy.

Field identification & locations

Identify by its unique silky banding and golden-brown stripes that shift when rotated in light (chatoyancy). Commonly found in South Africa, Western Australia, India, and Burma.

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