- any of a class of exceptionally coarse-grained intrusive igneous rocks consisting chiefly of quartz and feldspar: often occurring as dykes among igneous rocks of finer grain
单词 | pegmatite |
释义 | WordReference Random House Unabridged Dictionary of American English © 2024 peg•ma•tite (peg′mə tīt′),USA pronunciation n. [Petrol.]
Collins Concise English Dictionary © HarperCollins Publishers:: pegmatite /ˈpɛɡməˌtaɪt/ n
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