thortveititen.
/θɔːtˈviːɪtʌɪt//ˈtɔːtvʌɪtʌɪt/ Mineralogy.
A silicate of scandium, (Sc, Y)2Si2O7, found as colourless or greyish monoclinic crystals.
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meionite1808
gehlenite1817
marialite1868
bertrandite1887
lawsonite1895
nasonite1899
thortveitite1912
sklodowskite1924
rankinite1942
nenadkevichite1955
shcherbakovite1955
kilchoanite1961
1912 Jrnl. Chem. Soc. 102 ii. 56 (heading) Thortveitite, a new mineral.
1920 Nature 106 134/2 Thortveitite. This mineral..was discovered in 1911 by J. Schetelig in Norway.
1922 Encycl. Brit. XXXI. 949/2 Thortveitite, silicate of scandium, yttrium, etc. (Sc1Y)2O3·2SiO2; occurring as large orthorhombic crystals of prismatic habit in pegmatite in Southern Norway and Madagascar.
1963 Prof. Papers U.S. Geol. Surv. 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.
This entry has not yet been fully updated (first published 1933; most recently modified version published online September 2018).
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n.1912