Item talk:Q162760
From geokb
Mindat Short Description
A member of the Samarskite Group according to Ercit (2005).
See also Iwashiroite-(Y) and Formanite-(Y).
Geoscience Ontology Status Notes
Originally named yttrotantal: Ekeberg A G (1802) Uplysning 'om Ytterjordens egenskaper, i synnerhet i jamforelse med Berylljorden: om de Fossilier, hvari forstnamnde jord innehålles, samt om en ny uptäckt kropp of metallisk natur. Kongliga Svenska Vetenskaps-Akademiens Handlingar 23, 68-83 Name changed from yttrotantalite: Nickel E H, Mandarino J A (1987) Procedures involving the IMA Commission on New Minerals and Mineral Names and guidelines on mineral nomenclature, American Mineralogist 72, 1031-1042
IMA Formula (from Mindat)
(Y,U,Fe2+)(Ta,Nb)(O,OH)4
RRUFF Formula (from Geoscience Ontology)
(Y3+,U6+,Fe2+)(Ta5+,Nb5+)2(O,OH)4
