释义 |
thortveitite Min.|ˈθɔːtvaɪtaɪt, -veɪtaɪt, ˈtɔːt-| [ad. G. thortveitit (J. Schetelig 1911, in Centralbl. f. Min. 721), f. the name of O. Thortveit of Norway, its discoverer: see -ite1.] A silicate of scandium, (Sc, Y)2Si2O7, found as colourless or greyish monoclinic crystals.
1912Jrnl. Chem. Soc. CII. ii. 56 (heading) Thortveitite, a new mineral. 1963Prof. Papers U.S. Geol. Survey No. 475-b. 11/1 The association of thortveitite with fluorite in the deposit at Crystal Mountain represents a new type of occurrence, which contrasts strongly with the occurrences in granitic pegmatites of Norway and Madagascar. |