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Yttrofluorite from
Hundholmen, Narvik, Nordland, Norway


04555870017271927795343.jpg
Yttrofluorite, etc.

Hundholmen, Narvik, Nordland, Norway
03667930017271927751760.jpg
Yttrofluorite

Hundholmen, Narvik, Nordland, Norway
00913890017272030618074.jpg
Yttrofluorite, etc.

Hundholmen, Narvik, Nordland, Norway
07502620017362978253644.jpg
Yttrofluorite, etc.

Hundholmen, Narvik, Nordland, Norway
04555870017271927795343.jpg
Yttrofluorite, etc.

Hundholmen, Narvik, Nordland, Norway
03667930017271927751760.jpg
Yttrofluorite

Hundholmen, Narvik, Nordland, Norway
06290240017362978267203.jpg
Yttrofluorite, etc.

Hundholmen, Narvik, Nordland, Norway
07502620017362978253644.jpg
Yttrofluorite, etc.

Hundholmen, Narvik, Nordland, Norway
04555870017271927795343.jpg
Yttrofluorite, etc.

Hundholmen, Narvik, Nordland, Norway
03667930017271927751760.jpg
Yttrofluorite

Hundholmen, Narvik, Nordland, Norway
09417720017272030624250.jpg
Yttrofluorite, etc.

Hundholmen, Narvik, Nordland, Norway
00155380017362978275213.jpg
Yttrofluorite, etc.

Hundholmen, Narvik, Nordland, Norway
Locality type:Quarry
Classification
Species:Fluorite var: Yttrofluorite
Formula:(Ca1-xYx)F2+x where 0.05 < x < 0.3
Chemical Analyses:
Oxide wt%:
1
F33.10 %
CO22.90 %
SiO30.40 %
P2O50.06 %
CaO35.10 %
Na2O0.16 %
K2O0.05 %
Y2O36.49 %
La2O36.37 %
CeO14.71 %
Pr3O21.21 %
Nd2O35.68 %
Sm2O31.33 %
Gd2O31.29 %
Tb2O30.16 %
Dy2O31.21 %
Ho2O30.20 %
Er2O30.77 %
Tm2O30.12 %
Yb2O30.69 %
Total:112.00 %
Sample references:
1 -
Sverdrup, Thor L. (1968) Yttrofluorite-yttrocerite-cerfluorite in Norwegian pegmatites. Contributions to the mineralogy of Norway, no. 37. Norsk Geologisk Tidsskrift [Norwegian Journal of Geology], 48 (4) 245-252
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 yttrofluorite.
masses up to 4 × 1.8 m

Confirmation
Validity:Valid - First Recorded Locality
Associated Minerals Based on Photo Data:
Allanite-(Ce)33
Thalénite-(Y)17
Hundholmenite-(Y)10
Adamsite-(Y)4
Gadolinite-(Y)3
Fergusonite-(Y)2
Fluocerite-(Ce)1
Feldspar Group1
Lusernaite-(Y)1
Rowlandite-(Y)1
Britholite-(Y)1
Data
Mineral Data:Click here to view Yttrofluorite data
Locality Data:Click here to view Hundholmen, Narvik, Nordland, Norway
Photo GalleryView Gallery (4 photos)
Data Identifiers
Mindat Occurrence Record ID:65830
Long-form Identifier:1:3:65830:2
GUID (UUID V4):0
Nearest other occurrences of Yttrofluorite
12.3km (7.7 miles) ⓘStetind pegmatite, Narvik, Nordland, Norway
14.3km (8.9 miles) ⓘNedre Eivollen, Eivollen, Drag, Hamarøy, Nordland, Norway
14.8km (9.2 miles) ⓘJennyhaugen, Drag, Hamarøy, Nordland, Norway
15.6km (9.7 miles) ⓘØvre Lapplægeret Quarry, Lapplægeret, Drag, Hamarøy, Nordland, Norway
24.7km (15.3 miles) ⓘInnhavet, Hamarøy, Nordland, Norway
28.6km (17.7 miles) ⓘLagmannsvik, Hamarøy, Nordland, Norway
28.9km (17.9 miles) ⓘHåkonhals Quarry, Finnøya, Hamarøy, Nordland, Norway
44.4km (27.6 miles) ⓘKråkmo, Hamarøy, Nordland, Norway
References
Vogt, Thorolf (1911) Vorlaufige Mitteilung über Yttrofluorit, eine neue Mineralspezies aus dem nördlichen Norwegen. Centralblatt für Mineralogie, Geologie und Paläontologie, 1911. 373-377
Sverdrup, Thor L. (1968) Yttrofluorite-yttrocerite-cerfluorite in Norwegian pegmatites. Contributions to the mineralogy of Norway, no. 37. Norsk Geologisk Tidsskrift [Norwegian Journal of Geology], 48 (4) 245-252
Malcherek, Thomas; Schlüter, Jochen; Husdal, Tomas (2025) Anorthoyttrialite-(Y), Y4(SiO4)(Si3O10), a natural representative of B-type rare earth disilicates. Mineralogical Magazine, 89 (3). 428-442 doi:10.1180/mgm.2024.106
Zhou, Haoyang; Müller, Axel (2026) Unearthing Alteration Halos Associated with Paleoproterozoic Nb-Y-F Pegmatites in a Scandinavian Caledonian High-Grade Metamorphic Belt. Economic Geology, 121 (1). 25-43 doi:10.5382/econgeo.5199
 
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