Unscramble

o 1 b 3 s 1 i 1 d 2 i 1 a 1 n 1

8 letters · 11 points in Scrabble

Meaning

noun acid or granitic glass formed by the rapid cooling of lava without crystallization; usually dark, but transparent in thin pieces

originFrom Latin obsidianus; named after Obsidius, who was, according to Pliny, the Roman who discovered the stone in Aethiopia.

Etymology from Wiktionary, CC BY-SA 3.0

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