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Beddoe-Stephens, B., Fortey, N. J. (1981) Columbite from the Carrock Fell tungsten deposit. Mineralogical Magazine, 44 (334) 217-223 doi:10.1180/minmag.1981.044.334.16

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Reference TypeJournal (article/letter/editorial)
TitleColumbite from the Carrock Fell tungsten deposit
JournalMineralogical MagazineISSN0026-461X
AuthorsBeddoe-Stephens, B.Author
Fortey, N. J.Author
Year1981 (June)Volume44
Issue334
PublisherMineralogical Society
Download URLhttps://rruff.info/doclib/MinMag/Volume_44/44-334-217.pdf+
DOIdoi:10.1180/minmag.1981.044.334.16Search in ResearchGate
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Mindat Ref. ID3255Long-form Identifiermindat:1:5:3255:5
GUID0
Full ReferenceBeddoe-Stephens, B., Fortey, N. J. (1981) Columbite from the Carrock Fell tungsten deposit. Mineralogical Magazine, 44 (334) 217-223 doi:10.1180/minmag.1981.044.334.16
Plain TextBeddoe-Stephens, B., Fortey, N. J. (1981) Columbite from the Carrock Fell tungsten deposit. Mineralogical Magazine, 44 (334) 217-223 doi:10.1180/minmag.1981.044.334.16
In(1981, June) Mineralogical Magazine Vol. 44 (334) Mineralogical Society
Abstract/NotesAbstractMinute crystals of columbite occur in tungstate ore in the quartz veins at Carrock Fell Mine. Accompanying wolframite crystals show pronounced niobium enrichment adjacent to growth faces. The columbite grains, however, occur as inclusions in minerals formed during metasomatic replacement of the wolframite. They are chemically variable, containing 7–18 % WO3 by weight, up to 1.9% Sc2O3, and up to 4.7% TiO2. Tin, a common minor element in columbite, was not detected. The columbite grains are spatially associated with carbonate minerals involved in wolframite replacement, and it is suggested that their formation occurred principally when carbonate precipitation caused a reduction in the stability of dissolved niobium complexes.

Map of Localities

Locality Pages

LocalityCitation Details
Carrock Fell, Cumbria, England, UK
Carrock Mine, Mungrisdale, Eden, Cumbria, England, UK

Mineral Occurrences

LocalityMineral(s)
Carrock Mine, Mungrisdale, Eden, Cumbria, England, UK Ankerite, Columbite-(Fe)-Columbite-(Mn) Series, Columbite-(Mn), Wolframite Group


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