A form of amorphous silica found in several varieties, e.g. flint.
| 单词 | θ5901 |
| 释义 | the world > the earth > structure of the earth > constituent materials > stone > [noun] > hard stone > chert (4) chert1686 A form of amorphous silica found in several varieties, e.g. flint. hornstone1728 A compact siliceous rock, resembling flint, but more brittle; chert. horn-flint1803 flint of a horn-like appearance and translucency. taconite1905 A type of chert used as an iron ore in parts of North America. |
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