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North America
OBSIDIAN (var. APACHE TEARS): Obsidian, a natural volcanic glass, is a silica-rich mineraloid.OBSIDIAN (var. APACHE TEARS): Obsidian, a natural volcanic glass, is a silica-rich mineraloid. “Apache tears” are the spherical, black obsidian nodules that survive the obsidian-weathering process.
USA
Superior District, Pinal County, Arizona
5,9x5,0x3,7 cm
88.0g
