Meaning of the word obsidian in English

What does obsidian mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

obsidian

US /ɑːbˈsɪd.i.ən/
UK /ɒbˈsɪd.i.ən/

Noun

a hard, dark, glass-like volcanic rock formed by the rapid cooling of lava without crystallization

Example:
Ancient civilizations used obsidian to make sharp tools and weapons.
The volcanic eruption produced large quantities of shiny black obsidian.