Apache Tears
Apache Tears locality, Picketpost Mountain area, Superior, Pinal County, Arizona, USA
2.3 x 1.6 x 1.4 cm
Mindat.org defines Apache tears as a "variety of obsidian wherein the obsidian formed small droplet-shaped, spherical, or biscuit-shaped masses after being volcanically ejected and cooling as it passed through the atmosphere". These are essentially volcanic glass, but they're not opaque as they might appear on the exterior, ...
© Brian Kosnar - Mineral Classics