Rock Identifier
Apache Tear (Hydrated Obsidian (Natural Volcanic Glass)) — igneous
igneous

Apache Tear

Hydrated Obsidian (Natural Volcanic Glass)

Hardness: 5-5.5 | Color: Black (transparent when held to light) | Luster: Vitreous/Glassy | Structure: Amorphous | Specific Gravity: 2.35-2.6

Hardness
5-5
Luster
Vitreous/Glassy | Structure: Amorphous | Specific Gravity: 2
Identified More igneous

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Physical properties

Hardness: 5-5.5 | Color: Black (transparent when held to light) | Luster: Vitreous/Glassy | Structure: Amorphous | Specific Gravity: 2.35-2.6

Formation & geological history

Formed from rapid cooling of high-silica lava (rhyolite). These sub-rounded pebbles are created when perlite-rich flows weather away, leaving these solid obsidian nodules behind.

Uses & applications

Commonly used in jewelry-making as cabochons, metaphysical practices, gemstone collecting, and as decorative garden stones.

Geological facts

Legend states they were formed from the tears of grieving Apache women following a tragic battle at Big Picket Mountain in the 1870s. Geologically, they are unique because they haven't yet been fully hydrated into perlite.

Field identification & locations

Identify by holding to a strong light source; if it glows smoky brown or translucent gray, it is an Apache Tear. Frequently found in the American Southwest, specifically Arizona.