| NOM | substance | obsidiana | acid or granitic glass formed by the rapid cooling of lava without crystallization |
|---|
| Sentit | acid or granitic glass formed by the rapid cooling of lava without crystallization; usually dark, but transparent in thin pieces. | |
|---|---|---|
| General | roca volcànica vítria, vidre volcànic | A kind of natural glass produced when molten lava cools very rapidly |
| Anglès | obsidian | |
| Espanyol | obsidiana | |
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