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Målvika Tungsten Skarn Deposit, Tosenfjorden, Brønnøy, Nordland, Norwayi
Regional Level Types
Målvika Tungsten Skarn DepositOccurrence
TosenfjordenFjord
BrønnøyMunicipality
NordlandCounty
NorwayCountry

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Latitude & Longitude (WGS84):
65° 18' 7'' North , 12° 51' 57'' East
Latitude & Longitude (decimal):
65.30204,12.86599
GRN:
N44E05
Type:
Occurrence
Köppen climate type:
Dfc : Subarctic climate
Nearest Settlements:
PlacePopulationDistance
Terråk623 (2010)33.2km
Mindat Locality ID:
205025
Long-form identifier:
mindat:1:2:205025:9
GUID (UUID V4):
0
Other/historical names associated with this locality:
Målviken, Molvika
Other Languages:
View 1 more...
Norwegian:
Målvika tungsten skarnforekomst, Tosenfjorden, Brønnøy, Nordland, Norge


Two zones of skarn located at Målvika, at the northern shore of Tosenfjorden. The first zone consist of a 100 metre-wide main zone 100 m southwest of Målvika and extends NNW for 700 m inland, to a height of 400 metres.
The second (western) skarn zone is exposed in a road cut 200 m to the south, near Skjervigbogen (Skjærvigbugen).

Postmetamorphic and post-genetic mineralization.

Müller (2008) reports a possible mineable resource of 750 Kt of ore with 0.44 wt.% WO3.

Samples of the scheelite ore are in the Svend Pedersen Collection of the Evje og Hornnes Fennefoss museum and are of interest to collectors of UV minerals. The rich samples display good fluorescence.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


15 valid minerals.

Rock Types Recorded

Note: data is currently VERY limited. Please bear with us while we work towards adding this information!

Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

ⓘ 'Almandine-Spessartine Series'
ⓘ 'Amphibole Supergroup'
Formula: AB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
ⓘ 'Apatite'
Formula: Ca5(PO4)3(Cl/F/OH)
ⓘ 'Biotite'
Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
ⓘ Calcite
Formula: CaCO3
ⓘ Chalcopyrite
Formula: CuFeS2
ⓘ Epidote
Formula: (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
ⓘ Ferro-pargasite ?
Formula: NaCa2(Fe2+4Al)(Si6Al2)O22(OH)2
Description: Reported as a ferro-pargasitic amphibole (James et al. 1993). Needs to be confirmed according to current amphibole nomenclature
ⓘ Goethite
Formula: Fe3+O(OH)
ⓘ Hedenbergite
Formula: CaFe2+Si2O6
ⓘ Hedenbergite var. Ferrosalite
Formula: CaFe2+Si2O6
ⓘ Ilmenite
Formula: Fe2+TiO3
ⓘ Magnetite
Formula: Fe2+Fe3+2O4
ⓘ 'Plagioclase'
Formula: (Na,Ca)[(Si,Al)AlSi2]O8
ⓘ Pyrite
Formula: FeS2
ⓘ 'Pyroxene Group'
Formula: ADSi2O6
ⓘ Pyrrhotite
Formula: Fe1-xS
ⓘ Quartz
Formula: SiO2
ⓘ Scheelite
Formula: Ca(WO4)
ⓘ Sphalerite
Formula: ZnS
ⓘ Titanite
Formula: CaTi(SiO4)O
ⓘ Wollastonite
Formula: Ca3(Si3O9)

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
ⓘSphalerite2.CB.05aZnS
ⓘChalcopyrite2.CB.10aCuFeS2
ⓘPyrrhotite2.CC.10Fe1-xS
ⓘPyrite2.EB.05aFeS2
Group 4 - Oxides and Hydroxides
ⓘGoethite4.00.Fe3+O(OH)
ⓘMagnetite4.BB.05Fe2+Fe3+2O4
ⓘIlmenite4.CB.05Fe2+TiO3
ⓘQuartz4.DA.05SiO2
Group 5 - Nitrates and Carbonates
ⓘCalcite5.AB.05CaCO3
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
ⓘScheelite7.GA.05Ca(WO4)
Group 9 - Silicates
ⓘTitanite9.AG.15CaTi(SiO4)O
ⓘEpidote9.BG.05a(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
ⓘHedenbergite9.DA.15CaFe2+Si2O6
ⓘvar. Ferrosalite9.DA.15CaFe2+Si2O6
ⓘFerro-pargasite ?9.DE.15NaCa2(Fe2+4Al)(Si6Al2)O22(OH)2
ⓘWollastonite9.DG.05Ca3(Si3O9)
Unclassified
ⓘ'Amphibole Supergroup'-AB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
ⓘ'Biotite'-K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
ⓘ'Almandine-Spessartine Series'-
ⓘ'Plagioclase'-(Na,Ca)[(Si,Al)AlSi2]O8
ⓘ'Pyroxene Group'-ADSi2O6
ⓘ'Apatite'-Ca5(PO4)3(Cl/F/OH)

List of minerals for each chemical element

HHydrogen
Hⓘ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Hⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Hⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Hⓘ Ferro-pargasiteNaCa2(Fe42+Al)(Si6Al2)O22(OH)2
Hⓘ GoethiteFe3+O(OH)
Hⓘ ApatiteCa5(PO4)3(Cl/F/OH)
CCarbon
Cⓘ CalciteCaCO3
OOxygen
Oⓘ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Oⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Oⓘ CalciteCaCO3
Oⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Oⓘ Ferro-pargasiteNaCa2(Fe42+Al)(Si6Al2)O22(OH)2
Oⓘ GoethiteFe3+O(OH)
Oⓘ HedenbergiteCaFe2+Si2O6
Oⓘ IlmeniteFe2+TiO3
Oⓘ MagnetiteFe2+Fe23+O4
Oⓘ QuartzSiO2
Oⓘ ScheeliteCa(WO4)
Oⓘ TitaniteCaTi(SiO4)O
Oⓘ WollastoniteCa3(Si3O9)
Oⓘ Almandine-Spessartine Series
Oⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
Oⓘ Pyroxene GroupADSi2O6
Oⓘ ApatiteCa5(PO4)3(Cl/F/OH)
Oⓘ Hedenbergite var. FerrosaliteCaFe2+Si2O6
FFluorine
Fⓘ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Fⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Fⓘ ApatiteCa5(PO4)3(Cl/F/OH)
NaSodium
Naⓘ Ferro-pargasiteNaCa2(Fe42+Al)(Si6Al2)O22(OH)2
Naⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
MgMagnesium
Mgⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
AlAluminium
Alⓘ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Alⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Alⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Alⓘ Ferro-pargasiteNaCa2(Fe42+Al)(Si6Al2)O22(OH)2
Alⓘ Almandine-Spessartine Series
Alⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
SiSilicon
Siⓘ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Siⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Siⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Siⓘ Ferro-pargasiteNaCa2(Fe42+Al)(Si6Al2)O22(OH)2
Siⓘ HedenbergiteCaFe2+Si2O6
Siⓘ QuartzSiO2
Siⓘ TitaniteCaTi(SiO4)O
Siⓘ WollastoniteCa3(Si3O9)
Siⓘ Almandine-Spessartine Series
Siⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
Siⓘ Pyroxene GroupADSi2O6
Siⓘ Hedenbergite var. FerrosaliteCaFe2+Si2O6
PPhosphorus
Pⓘ ApatiteCa5(PO4)3(Cl/F/OH)
SSulfur
Sⓘ ChalcopyriteCuFeS2
Sⓘ PyriteFeS2
Sⓘ PyrrhotiteFe1-xS
Sⓘ SphaleriteZnS
ClChlorine
Clⓘ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Clⓘ ApatiteCa5(PO4)3(Cl/F/OH)
KPotassium
Kⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
CaCalcium
Caⓘ CalciteCaCO3
Caⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Caⓘ Ferro-pargasiteNaCa2(Fe42+Al)(Si6Al2)O22(OH)2
Caⓘ HedenbergiteCaFe2+Si2O6
Caⓘ ScheeliteCa(WO4)
Caⓘ TitaniteCaTi(SiO4)O
Caⓘ WollastoniteCa3(Si3O9)
Caⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
Caⓘ ApatiteCa5(PO4)3(Cl/F/OH)
Caⓘ Hedenbergite var. FerrosaliteCaFe2+Si2O6
TiTitanium
Tiⓘ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Tiⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Tiⓘ IlmeniteFe2+TiO3
Tiⓘ TitaniteCaTi(SiO4)O
MnManganese
Mnⓘ Almandine-Spessartine Series
FeIron
Feⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Feⓘ ChalcopyriteCuFeS2
Feⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Feⓘ Ferro-pargasiteNaCa2(Fe42+Al)(Si6Al2)O22(OH)2
Feⓘ GoethiteFe3+O(OH)
Feⓘ HedenbergiteCaFe2+Si2O6
Feⓘ IlmeniteFe2+TiO3
Feⓘ MagnetiteFe2+Fe23+O4
Feⓘ PyriteFeS2
Feⓘ PyrrhotiteFe1-xS
Feⓘ Almandine-Spessartine Series
Feⓘ Hedenbergite var. FerrosaliteCaFe2+Si2O6
CuCopper
Cuⓘ ChalcopyriteCuFeS2
ZnZinc
Znⓘ SphaleriteZnS
WTungsten
Wⓘ ScheeliteCa(WO4)

Other Databases

Link to Geological Survey of Norway:2191

Other Regions, Features and Areas containing this locality

Eurasian PlateTectonic Plate
EuropeContinent
ScandinaviaRegion

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References

James, D. Wyn, Nordgulen, Øystein, Ineson, Richard, Mitchell, John G. (1993) Geology and K/Ar chronology of the Målvika scheelite skarns, Central Norwegian Caledonides. Norges Geologiske Undersøkelse Bulletin 424, 65-74
Müller, Axel; Furuhaug, Leif (2008) Resource evaluation of the Målvika tungsten deposit, Nordland. Norges Geologiske Undersøkelse. Rapport 2008.008. Norges Geologiske Undersøkelse (NGU) 49 pp.
(2024) Deposit Area 1813 - 025. Målvika. The Ore Database, Geological Survey of Norway.
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