Rock Identifier
Tiger's Eye, Hematite, and Black Obsidian Bracelet (SiO2 (Tiger's Eye), Fe2O3 (Hematite), and 70-75% SiO2 (Obsidian)) — mineral
mineral

Tiger's Eye, Hematite, and Black Obsidian Bracelet

SiO2 (Tiger's Eye), Fe2O3 (Hematite), and 70-75% SiO2 (Obsidian)

Hardness: 5-7 Mohs; Colors: Golden-brown, metallic silver-grey, jet black; Luster: Silky (Tiger's Eye), Metallic (Hematite), Vitreous (Obsidian); Structure: Trigonal/Amorphous

Hardness
5-7 Mohs
Identified More mineral

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Physical properties

Hardness: 5-7 Mohs; Colors: Golden-brown, metallic silver-grey, jet black; Luster: Silky (Tiger's Eye), Metallic (Hematite), Vitreous (Obsidian); Structure: Trigonal/Amorphous

Formation & geological history

A combination of metamorphic processes (Tiger's Eye), sedimentary/hydrothermal deposition (Hematite), and rapid cooling of felsic lava (Obsidian)

Uses & applications

Primarily used in jewelry for bracelets, necklaces, and beads; often sold as 'protection' stones in metaphysical markets

Geological facts

Tiger's Eye displays a unique optical effect called chatoyancy. Hematite is the primary ore of iron and often creates a red streak when scratched on porcelain. Obsidian is naturally occurring volcanic glass.

Field identification & locations

Identify by the silky golden bands in Tiger's Eye, the heavy weight and metallic shine of Hematite, and the deep, glassy black surface of Obsidian. Commonly sourced from South Africa and Mexico.