igneous
Apache Tears (Tumbled Obsidian)
Volcanic Glass (SiO2 + impurities)
Hardness: 5-5.5 (Mohs scale), Color: Smoky black to translucent brownish-grey when held to light, Luster: Vitreous/Glassy, Crystal Structure: Amorphous (non-crystalline), Specific Gravity: 2.3-2.6
- Hardness
- 5-5
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Physical properties
Hardness: 5-5.5 (Mohs scale), Color: Smoky black to translucent brownish-grey when held to light, Luster: Vitreous/Glassy, Crystal Structure: Amorphous (non-crystalline), Specific Gravity: 2.3-2.6
Formation & geological history
Formed by the rapid cooling of silica-rich rhyolitic lava. These rounded nodules are often found embedded in gray perlite, which has weathered away to release these glass 'pebbles.' Mostly from Tertiary and Quaternary volcanic eruptions.
Uses & applications
Commonly used for lapidary work, jewelry making (pendants and beads), and as metaphysical stones for emotional healing and protection.
Geological facts
Legend says that the stones were formed from the tears of grieving widows of Apache warriors who leapt to their deaths from a cliff to avoid capture by cavalry. Genuine Apache Tears will appear translucent or smoky when held up to a strong light source.
Field identification & locations
Identify in the field by checking for a glassy, conchoidal fracture and translucency. They are frequently found in the southwestern United States (especially Arizona and New Mexico) near volcanic perlite deposits.
