
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
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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.
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