31471221tachylitePT2026-03-30 21:06:49UF31471222Hawaiian obsidianNDUF31471223basalt glassNDUF31471224glass, basaltNDUF31471225obsidian, HawaiianNDUF31471226sideromelaneNDUF31471227tachylyteNDBT31457318volcanic glassPT