igneous
Apache Tear (Obsidian)
Volcanic Glass (SiO2 + impurities)
Mohs hardness of 5-5.5; color is translucent smoky black to dark brown; vitreous luster; amorphous crystal structure; conchoidal fracture; specific gravity 2.35-2.60.
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Physical properties
Mohs hardness of 5-5.5; color is translucent smoky black to dark brown; vitreous luster; amorphous crystal structure; conchoidal fracture; specific gravity 2.35-2.60.
Formation & geological history
Apache tears are rounded pebbles of obsidian that formed when hot silicic lava flowed into the air and cooled rapidly before crystallization could occur. They are usually found embedded in perlite.
Uses & applications
Popular in jewelry, as pocket stones, and for metaphysical collecting. Historically used for making sharp tools like arrowheads.
Geological facts
Legend says they formed from the tears of Apache women mourning warriors who leapt from a cliff to avoid capture by the US Cavalry. They are unique for being translucent when held up to light.
Field identification & locations
Identify by their rounded 'nodule' appearance and conchoidal fracture. Often found in the American Southwest (Arizona, Nevada, New Mexico) in areas with perlite deposits and volcanic activity.
