Apache Tear (Obsidian)

Physical Properties

Hardness: 5-5.5 (Mohs scale), Color: Black to smoky translucent brown, Luster: Vitreous/glassy, Crystal structure: Amorphous, Cleavage: None (conchoidal fracture), Specific gravity: 2.3-2.6

Formation & Geological History

Formed from rhyolitic lava flows that cooled rapidly, preventing crystal growth. They are typically found embedded in a perlite matrix. Geological age ranges from Cenozoic to recent volcanic eras.

Uses & Applications

Used primarily for jewelry (cabochons), metaphysical practice, and as collectible specimens. Culturally significant to Native American tribes in the Southwest US.

Geological Facts

According to legend, the stone was named for the tears shed by the families of Apache warriors who leaped to their deaths from a cliff to avoid capture by the US cavalry.

Field Identification & Locations

Identify in the field by their rounded, pebble-like shape within white grey perlite hosts. When held to a light, they should appear translucent/smoky despite appearing solid black. Commonly found in Arizona and Nevada, USA.

Identified on: 4/15/2026

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