bn:01124288n
Noun Concept
Categories: Volcanic rocks, Felsic rocks, Glass in nature, Gemstones, archived copy as title
EN
apache tears
EN
"Apache tears" is the popular term for rounded pebbles of obsidian or "obsidianites" composed of black or dark-colored natural volcanic glass, usually of rhyolite composition and bearing conchoidal fracture. Wikipedia
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EN
"Apache tears" is the popular term for rounded pebbles of obsidian or "obsidianites" composed of black or dark-colored natural volcanic glass, usually of rhyolite composition and bearing conchoidal fracture. Wikipedia
Wikipedia
Wikidata