A group of volcanic rocks, having a characteristically rough or gritty surface. The name was given by Haüy to certain volcanic rocks from Auvergne…
| 单词 | θ5745 |
| 释义 | the world > the earth > structure of the earth > constituent materials > rock > igneous rock > [noun] > volcanic rocks > trachyte (10) trachyte1821 A group of volcanic rocks, having a characteristically rough or gritty surface. The name was given by Haüy to certain volcanic rocks from Auvergne… Subcategories:— varieties of (9) |
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