Apache Tear (Obsidian)

Physical Properties

Hardness: 5-5.5 (Mohs); Color: Black to dark brown (translucent when held to light); Luster: Vitreous/Glassy; Structure: Amorphous (no crystal structure); Cleavage: None/Conchoidal fracture; SG: 2.3-2.6.

Formation & Geological History

Formed from rapid cooling of silica-rich rhyolitic lava which prevents crystallization. These specific rounded nodules are typically formed by cooling within a perlite matrix over the last few million years.

Uses & Applications

Used primarily for lapidary work, jewelry (pendants and beads), and as a popular souvenir/metaphysical collecting stone.

Geological Facts

Legend says they formed from the tears of Apache women mourning for warriors who jumped from a cliff to avoid capture; they are distinctive from other obsidian because they are naturally water-worn-looking nodules found in grey volcanic ash.

Field Identification & Locations

Identify by holding the black stone up against a strong light source; it should be translucent with a smoky tea or grey color. Found commonly in Arizona, Nevada, and New Mexico.

Identified on: 5/17/2026

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