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camptonite
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camptonite
camptonite Petrogr. (ˈkæmptənaɪt) [a. G. camptonite (H. Rosenbusch Mikrosk. Physiogr. d. Min. und Gesteine (ed. 2, 1887) II. 333), f. Campton, a town in New Hampshire, U.S.A.: see -ite1.] Any of a group of dark-coloured, usu. porphyritic dike-rocks resembling basalt and typically consisting of pheno...
Oxford English Dictionary
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monchiquite
monchiquite Petrogr. (mɒnˈtʃiːkwaɪt) [a. G. monchiquite (Hunter & Rosenbusch 1890, in Tschermak's mineral. u. petrograph. Mittheilungen XI. 447), f. Serra de Monchique, name of a mountain range in southern Portugal where such a rock is found: see -ite1.] A lamprophyre containing small phenocrysts of...
Oxford English Dictionary
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Coll
Dolerite and camptonite dykes of Permo-Carboniferous or Tertiary age are also seen in the east of the island.
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Geology of Quebec
Central Montreal is underlain by 119 to 117 million year old plutonic basanite, lamprophyre and camptonite while to the immediate southeast amphibole gabbro
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South Uist
Numerous NW to SE dykes cut through the island: quartz-dolerite, camptonite and monchiquite dykes of Permo-Carboniferous age and later Palaeogene tholeiitic
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leuco-
leuco- (ˈl(j)uːkəʊ) before a vowel leuc-, a. Gr. λευκο-, combining form of λευκός white; (b) In Med. used to represent ‘leucocyte’ (as in leucopenia, -poiesis); (c) In Chem. [after its use in Dyeing: see b], used to form the names of some colourless compounds that are chemically transformed to colou...
Oxford English Dictionary
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