单词 | anorthite |
释义 | an·or·thite ![]() n. A white to gray variety of plagioclase feldspar that contains a high proportion of calcium to sodium and occurs in alkaline igneous rocks such as gabbro and anorthosite. [From Greek an-, not; see A-1 + orthos, straight (from its oblique crystals).] an′or·thitic (-thĭtĭk) adj. |
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