EntityQ2918359· pop 6· linked from 5 articlesApache tearsSign in to savePopular term for pebbles of obsidianConnectionsInternational Standard Book NumberEntityJohnny CashEntitygemstoneEntityApacheEntityobsidianEntityMohs scale of mineral hardnessEntitypebbleEntitytuffEntityrhyoliteEntityperliteEntitySuperiorEntityvolcanic glassEntityconchoidal fractureEntityPele's tearsEntityBitter Tears: Ballads of the American IndianEntitylapidaryEntityCategoriesFolklore of the United StatesGemstonesIgneous rocksObsidian