Rock Identifier
Apache Tear (Obsidian (Volcanic Glass), primarily SiO2) — igneous
igneous

Apache Tear

Obsidian (Volcanic Glass), primarily SiO2

AI-generated identification · may be incorrect

Hardness of 5 to 5.5 on the Mohs scale, dark smoky black to translucent brown color, vitreous luster, amorphous crystal structure with conchoidal fracture.

Identified More igneous →
Explore Apache Tear in the encyclopedia →

Identify your own rocks.

Get a report just like this from any photo, free.

Physical properties

Hardness of 5 to 5.5 on the Mohs scale, dark smoky black to translucent brown color, vitreous luster, amorphous crystal structure with conchoidal fracture.

Formation & geological history

Formed from rapidly cooling silica-rich felsic lava flows, specifically as small rounded nodules within perlite deposits.

Uses & applications

Used primarily in lapidary work, jewelry making, and as metaphysical healing stones or collector specimens.

Geological facts

Legend connects the name to grief-stricken Native American women weeping for warriors lost in battle. It is a natural glass rather than a true mineral.

Field identification & locations

Found commonly in the American Southwest, identified by its smooth, rounded pebble shape and translucent brown-black appearance when backlit.