tritomiten.
/ˈtrɪtəmʌɪt/ Mineralogy.
1. A borosilicate, fluoride, and hydroxide of cerium earths, calcium, and thorium found as brown trigonal crystals.
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the world > the earth > minerals > types of mineral > silicates > miscellaneous silicates > [noun] > cerite > cerium or rare earth silicates
tritomite1856
rinkite1885
hellandite1903
nordite1941
perrierite1951
spencite1961
tundrite1965
tritomite-Y1966
1856 Edinb. New Philos. Jrnl. 3 60 The tritomite here analysed was sent me by M. Wiborg of Brevig, labelled as thorite, which it also very closely resembled in appearance.
1868 J. D. Dana Syst. Mineral. (ed. 5) 412 Tritomite... Lustre submetallic, vitreous. Color dull brown. Streak dirty yellowish-gray. Subtranslucent.
1962 Amer. Mineralogist 47 9 Tritomite, a rare, metamict boro-silicate..is known only from the nepheline syenite pegmatites of Låven, Brevik, and Barkevik, in..southern Norway.
2. tritomite-Y: an analogue of this in which yttrium largely replaces cerium.
ΘΚΠ
the world > the earth > minerals > types of mineral > silicates > miscellaneous silicates > [noun] > cerite > cerium or rare earth silicates
tritomite1856
rinkite1885
hellandite1903
nordite1941
perrierite1951
spencite1961
tundrite1965
tritomite-Y1966
1966 Amer. Mineralogist 51 156 The terms..spencite, [etc.]. should be dropped... Respectively, these minerals would be known as..tritomite-(Y), [etc.]... The Commission [on New Minerals and Mineral Names of the International Mineralogical Association] has approved this nomenclature.
This entry has not yet been fully updated (first published 1986; most recently modified version published online March 2022).
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n.1856