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Yttrofluorite from
Hundholmen, Tysfjord, Nordland, Norway

Species:Fluorite var: Yttrofluorite
Formula:(Ca1-xYx)F2+x where 0.05< x <0.3
Comments:Described as a new mineral by Vogt, from Hundholmen (?- locality not mentioned in paper), in 1911. A large vein that occured in the pegmatite quarry, about 60 cm thick in average, consisted almost entirely of ytrofluorite.

Validity:Valid - Type Locality
References:Vogt, T. (1911): Vorlaufige Mitteilung über Yttrofluorit, eine neue Mineralspezies aus dem nördlichen Norwegen. Centralblatt für Mineralogie, Geologie und Paläontologie, 373-377 ; Sverdrup, T. L. (1968): Contributions to the Mineralogy of Norway No. 37. Yttrofluorite-yttrocerite-cerfluorite in norwegian pegmatites. Norsk Geologisk Tidsskrift 48: 245-252
Associated Minerals Based on Photo Data:
Allanite-(Ce)10 photos of Yttrofluorite associated with Allanite-(Ce) at this locality.
Thalénite-(Y)8 photos of Yttrofluorite associated with Thalénite-(Y) at this locality.
Hundholmenite-(Y)3 photos of Yttrofluorite associated with Hundholmenite-(Y) at this locality.
Fergusonite-(Y)2 photos of Yttrofluorite associated with Fergusonite-(Y) at this locality.
Adamsite-(Y)2 photos of Yttrofluorite associated with Adamsite-(Y) at this locality.
Fluocerite-(Ce)1 photo of Yttrofluorite associated with Fluocerite-(Ce) at this locality.
Britholite-(Y)1 photo of Yttrofluorite associated with Britholite-(Y) at this locality.
Mineral Data:Click here to view Yttrofluorite data
Locality Data:Click here to view Hundholmen, Tysfjord, Nordland, Norway
Nearest other occurrences of Yttrofluorite
12.3km (7.6 miles) A Stetind pegmatite, Tysfjord, Nordland, Norway
28.7km (17.8 miles) B Lagmannsvik, Hamarøy, Nordland, Norway
28.9km (18.0 miles) C Håkonhals Quarry, Finnøy, Hamarøy, Nordland, Norway
44.5km (27.6 miles) D Kråkmo, Hamarøy, Nordland, Norway
Mineral and/or Locality  
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