英语词汇“pegmatite”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	pegmatite
释义	pegmatite Min.\|ˈpɛgmətaɪt\| [f. Gr. πῆγµα, πηγµατ- in sense of ‘thing joined together or conglutinated’ + -ite¹.] A coarsely crystallized kind of granite, containing little mica. Hence pegmatitic \|-ˈtɪtɪk\|, ˈpegmatoid adjs., resembling or having the structure of pegmatite. 1832Darwin in Life & Lett. I. 238 At Bahia the pegmatite and gneiss in beds had the same direction.1852Th. Ross Humboldt's Trav. II. xxiv. 460 The pegmatites, or graphic granites.1864Webster, Pegmatite,..a variety of granite, in which the quartz, as seen over the surface, has some resemblance to Oriental writing;—called also graphic granite.1896Natural Science Aug. 86 The pegmatitic structure of so many igneous veins.
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