mossiten.
/ˈmɒsʌɪt/, U.S. /ˈmɔˌsaɪt/, /ˈmɑˌsaɪt/ Mineralogy.
A mineral originally regarded as a niobium-rich analogue of tapiolite (esp. as the niobium-rich endmember of a series with tapiolite), and later as a tantalian and ferroan variety of columbite, but now discredited as a species (see quot. 1979).
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the world > the earth > minerals > types of mineral > oxides and hydroxides > [noun] > oxides of titanium, tantalum, nickel, or rare earths > others
crichtonite1813
polymignite1826
warwickite1838
samarskite1849
adelpholite1859
guarinite1859
hielmite1861
tapiolite1868
sipylite1877
koppite1880
stibiotantalite1893
lewisite1895
mossite1898
neotantalite1903
priorite1907
arizonite1909
betafite1912
ampangabeite1913
ishikawaite1922
tanteuxenite1928
thoreaulite1934
simpsonite1937
priderite1951
irinite1955
obruchevite1955
lueshite1961
pseudo-ixiolite1963
wodginite1963
pseudorutile1966
armalcolite1970
1898 Jrnl. Chem. Soc. 74 ii. 387 The new mineral, mossite, occurs with yttrotantalite and columbite in a pegmatite vein at Berg in the parish of Råde, near Moss, in Norway.
1917 Mineral. Mag. 18 120 The relationship which strüverite and ilmenorutile bear to rutile, on the one hand, and to tapiolite and mossite, on the other hand, may be graphically illustrated.
1955 Amer. Mineralogist 40 445 These features lead one to question the existence of mossite and of a complete tetragonal mossite–tapiolite series.
1968 I. Kostov Mineral. ii. iv. 247 Tapiolite and mossite have a rutile type of structure in which two [(Ta, Nb)O6] octahedra alternate with one [FeO6] octahedron along the tetragonal axis.
1979 Mineral. Mag. 43 554/2 Mossite has been discredited by the IMA Commission on New Minerals and Mineral Names. The holotype sample is partly..orthorhombic tantalite..and partly also tapiolite.
1985 Acta Crystallographica C. 41 663/1 FeNb2O6 is known to have two types of crystal structures... The other is a high-temperature modification of ferrocolumbite, produced in a reducing atmosphere. This compound was once reported as a mineral, mossite, but the mineral name is currently discredited.
This entry has been updated (OED Third Edition, December 2002; most recently modified version published online March 2022).
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