- granite pegmatite
- 花岗伟晶岩
English-Chinese geology dictionary (英汉地质大词典). 2013.
granite pegmatite
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Pegmatite — is a very coarse grained igneous rock that has a grain size of 20 mm or more; such rocks are referred to as pegmatitic .Most pegmatites are composed of quartz, feldspar and mica; in essence a granite . Rarer intermediate and mafic pegmatite… … Wikipedia
pegmatite — [ pɛgmatit ] n. f. • 1807; du gr. pêgma, pêgmatos « conglomération » ♦ Minér. Roche magmatique dont les cristaux granitoïdes de grande taille peuvent contenir des éléments rares (lithium, uranium). « la terre de bruyère, maigre et sèche, [...]… … Encyclopédie Universelle
Pegmatite — Peg ma*tite, n. [From Gr. ? something fastened together, in allusion to the quartz and feldspar in graphic granite: cf. F. pegmatite. See {Pegm}.] (Min.) (a) Graphic granite. See under {Granite}. (b) More generally, a coarse granite occurring as… … The Collaborative International Dictionary of English
Granite — For other uses, see Granite (disambiguation). Granite Igneous Rock Granite containing potassium feldspar, plagioclase feldspar, quartz, and biotite and/or amphibole Composi … Wikipedia
pegmatite — pegmatitic /peg meuh tit ik/, adj. /peg meuh tuyt /, n. Petrol. a coarsely crystalline granite or other high silica rock occurring in veins or dikes. [1825 35; < Gk pegmat (s. of pêgma) anything fastened together, a bond (Compare pegnýein to… … Universalium
granite — granit [ granit ] n. m. VAR. didact. granite • 1611; it. granito « grenu » → grain ♦ Roche magmatique dure, formée de cristaux de feldspath, de quartz et de mica ou d amphibole. Le granit à texture grenue se présente en massif, en filons. Granit… … Encyclopédie Universelle
granité — granit [ granit ] n. m. VAR. didact. granite • 1611; it. granito « grenu » → grain ♦ Roche magmatique dure, formée de cristaux de feldspath, de quartz et de mica ou d amphibole. Le granit à texture grenue se présente en massif, en filons. Granit… … Encyclopédie Universelle
pegmatite — noun A coarsely crystalline igneous or plutonic rock composed primarily of feldspar and quartz, normally with muscovite and/or biotite mica. Often contains other minerals, which may be of economic importance. Pegmatite is chemically identical to… … Wiktionary
pegmatite — noun Etymology: French, from Greek pēgmat , pēgma something fastened together, from pēgnynai to fasten together more at pact Date: circa 1828 a coarse variety of granite occurring in dikes or veins • pegmatitic adjective … New Collegiate Dictionary
pegmatite — pegmÉ™taɪt n. crystalline granite … English contemporary dictionary
pegmatite — [ pɛgmətʌɪt] noun Geology a coarsely crystalline granite or other igneous rock with crystals several centimetres in length. Origin C19: from Gk pēgma, pēgmat thing joined together + ite1 … English new terms dictionary
