| NOM | substance | roca volcànica vítria, vidre volcànic | a kind of natural glass produced when molten lava cools very rapidly |
|---|
| Sentit | A kind of natural glass produced when molten lava cools very rapidly. | |
|---|---|---|
| Sinònim | vidre volcànic | |
| Específic | obsidiana | acid or granitic glass formed by the rapid cooling of lava without crystallization |
| resinita | dark acid granitic glass | |
| tachylite | A basic or basalt glass | |
| General | roca volcànica | extrusive igneous rock solidified near or on the surface of the Earth |
| Anglès | volcanic glass | |
| Espanyol | roca volcánica vítrea | |
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