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Ørsdalen Mines, Ørsdalen, Bjerkreim, Rogaland, Norwayi
Regional Level Types
Ørsdalen MinesGroup of Mines
ØrsdalenValley
BjerkreimMunicipality
RogalandCounty
NorwayCountry

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Name(s) in local language(s):Ørsdalen gruver (Ørsdalen Gruber), Ørsdalen, Bjerkreim kommune, Rogaland fylke, Norge
Latitude & Longitude (WGS84): 58° 40' 48'' North , 6° 25' 55'' East
Latitude & Longitude (decimal): 58.68018,6.43199
GeoHash:G#: u4ktf67su
Locality type:Group of Mines
Köppen climate type:Cfc : Subpolar oceanic climate
Nearest Settlements:
PlacePopulationDistance
Tonstad751 (2010)16.6km
Gilja248 (2013)17.3km
Vikeså715 (2010)20.3km
Moi1,740 (2010)25.8km
Oltedal725 (2013)28.1km


Discovered around 1900. Originally mined for molybdenite, but wolframite became very soon the most important ore. The mines were extensively worked under World War 1. The last mine was closed in 1950. Located ca. 5 km at the far end of Ørsdalsvannet. The most important mines are: Schånings Grube and Hovland Grube.


Regions containing this locality

Eurasian PlateTectonic Plate
EuropeContinent
ScandinaviaRegion

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Standard Detailed Strunz Dana Chemical Elements

Mineral List

Mineral list contains entries from the region specified including sub-localities

14 valid minerals.

Rock Types Recorded

Note: this is a very new system on mindat.org and data is currently VERY limited. Please bear with us while we work towards adding this information!

Rock list contains entries from the region specified including sub-localities

Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

Almandine
Formula: Fe2+3Al2(SiO4)3
Reference: Heier, K. (1956): The Geology of the Ørsdalen District, Rogaland, S. Norway. Norsk Geologisk Tidsskrift 36, 167-211
'Amphibole Supergroup'
Formula: AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Reference: Svensen, S. Å. :(2004): Noen mineralforekomster i Rogaland. Norsk Bergverksmuseum Skrift 28: 23-29
'Biotite'
Reference: Svensen, S. Å. :(2004): Noen mineralforekomster i Rogaland. Norsk Bergverksmuseum Skrift 28: 23-29
Bismuth
Formula: Bi
Description: Bismuth occure surrounded by bismuthinite in scheelite rich parts of the ore.
Reference: Urban, H. (1971): Zur Kenntnis der schichtgebundenen Wolfram-Molybdän-Vererzung im Örsdalen (Rogaland), Norwegen. Mineralium Deposita 6: 177-195. Neumann, H. (1985): Norges Mineraler. Norges geologiske Undersøkelse Skrifter 68, p. 10.
Bismuthinite
Formula: Bi2S3
Description: Together with bismuth in scheelite rich parts of the ore.
Reference: Urban, H. (1971): Zur Kenntnis der schichtgebundenen Wolfram-Molybdän-Vererzung im Örsdalen (Rogaland), Norwegen. Mineralium Deposita 6: 177-195. Neumann, H. (1985): Norges Mineraler. Norges geologiske Undersøkelse Skrifter 68, p. 10. pp. 10 and 33
Chalcopyrite
Formula: CuFeS2
Reference: Heier, K. (1955): The Ørsdalen tungsten deposit. Norsk Geologisk Tidsskrift 35: 69-85
Cordierite
Formula: (Mg,Fe)2Al3(AlSi5O18)
Reference: Urban, H. (1971): Zur Kenntnis der schichtgebundenen Wolfram-Molybdän-Vererzung im Örsdalen (Rogaland), Norwegen. Mineralium Deposita 6: 177-195. Neumann, H. (1985): Norges Mineraler. Norges geologiske Undersøkelse Skrifter 68, p. 58
Ferberite
Formula: FeWO4
Description: Heier analysed 5 wolframites from different localities in Ørsdalen, and all had more iron than manganese.
Reference: Heier, K. (1955): The Ørsdalen tungsten deposit. Norsk Geologisk Tidsskrift 35: 69-85
Magnetite
Formula: Fe2+Fe3+2O4
Reference: Urban, H. (1971): Zur Kenntnis der schichtgebundenen Wolfram-Molybdän-Vererzung im Örsdalen (Rogaland), Norwegen. Mineralium Deposita 6: 177-195. Neumann, H. (1985): Norges Mineraler. Norges geologiske Undersøkelse Skrifter 68, p. 58
Molybdenite
Formula: MoS2
Reference: Heier, K. (1955): The Ørsdalen tungsten deposit. Norsk Geologisk Tidsskrift 35: 69-85; Svensen, S. Å. :(2004): Noen mineralforekomster i Rogaland. Norsk Bergverksmuseum Skrift 28: 23-29
Phlogopite
Formula: KMg3(AlSi3O10)(OH)2
Reference: Svensen, S. Å. :(2004): Noen mineralforekomster i Rogaland. Norsk Bergverksmuseum Skrift 28: 23-29
Pyrite
Formula: FeS2
Reference: Heier, K. (1955): The Ørsdalen tungsten deposit. Norsk Geologisk Tidsskrift 35: 69-85; Svensen, S. Å. :(2004): Noen mineralforekomster i Rogaland. Norsk Bergverksmuseum Skrift 28: 23-29
Pyrrhotite
Formula: Fe7S8
Reference: Heier, K. (1955): The Ørsdalen tungsten deposit. Norsk Geologisk Tidsskrift 35: 69-85; Svensen, S. Å. :(2004): Noen mineralforekomster i Rogaland. Norsk Bergverksmuseum Skrift 28: 23-29
Scheelite
Formula: Ca(WO4)
Reference: Heier, K. (1955): The Ørsdalen tungsten deposit. Norsk Geologisk Tidsskrift 35: 69-85
Spinel
Formula: MgAl2O4
Reference: Urban, H. (1971): Zur Kenntnis der schichtgebundenen Wolfram-Molybdän-Vererzung im Örsdalen (Rogaland), Norwegen. Mineralium Deposita 6: 177-195. Neumann, H. (1985): Norges Mineraler. Norges geologiske Undersøkelse Skrifter 68, p. 10. p. 58
Ulvöspinel
Formula: TiFe2O4
Description: Found as lamellaes in magnetite in the upper part of the deposit.
Reference: Urban, H. (1971): Zur Kenntnis der schichtgebundenen Wolfram-Molybdän-Vererzung im Örsdalen (Rogaland), Norwegen. Mineralium Deposita 6: 177-195. Neumann, H. (1985): Norges Mineraler. Norges geologiske Undersøkelse Skrifter 68, p. 58

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
Bismuth1.CA.05Bi
Group 2 - Sulphides and Sulfosalts
Bismuthinite2.DB.05Bi2S3
Chalcopyrite2.CB.10aCuFeS2
Molybdenite2.EA.30MoS2
Pyrite2.EB.05aFeS2
Pyrrhotite2.CC.10Fe7S8
Group 4 - Oxides and Hydroxides
Ferberite4.DB.30FeWO4
Magnetite4.BB.05Fe2+Fe3+2O4
Spinel4.BB.05MgAl2O4
Ulvöspinel4.BB.05TiFe2O4
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
Scheelite7.GA.05Ca(WO4)
Group 9 - Silicates
Almandine9.AD.25Fe2+3Al2(SiO4)3
Cordierite9.CJ.10(Mg,Fe)2Al3(AlSi5O18)
Phlogopite9.EC.20KMg3(AlSi3O10)(OH)2
Unclassified Minerals, Rocks, etc.
'Amphibole Supergroup'-AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
'Biotite'-

List of minerals arranged by Dana 8th Edition classification

Group 1 - NATIVE ELEMENTS AND ALLOYS
Semi-metals and non-metals
Bismuth1.3.1.4Bi
Group 2 - SULFIDES
AmXp, with m:p = 1:1
Pyrrhotite2.8.10.1Fe7S8
AmBnXp, with (m+n):p = 1:1
Chalcopyrite2.9.1.1CuFeS2
AmBnXp, with (m+n):p = 2:3
Bismuthinite2.11.2.3Bi2S3
AmBnXp, with (m+n):p = 1:2
Molybdenite2.12.10.1MoS2
Pyrite2.12.1.1FeS2
Group 7 - MULTIPLE OXIDES
AB2X4
Magnetite7.2.2.3Fe2+Fe3+2O4
Spinel7.2.1.1MgAl2O4
Ulvöspinel7.2.5.2TiFe2O4
Group 48 - ANHYDROUS MOLYBDATES AND TUNGSTATES
AXO4
Ferberite48.1.1.2FeWO4
Scheelite48.1.2.1Ca(WO4)
Group 51 - NESOSILICATES Insular SiO4 Groups Only
Insular SiO4 Groups Only with cations in [6] and >[6] coordination
Almandine51.4.3a.2Fe2+3Al2(SiO4)3
Group 61 - CYCLOSILICATES Six-Membered Rings
Six-Membered Rings with Al substituted rings
Cordierite61.2.1.1(Mg,Fe)2Al3(AlSi5O18)
Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings
Sheets of 6-membered rings with 2:1 layers
Phlogopite71.2.2b.1KMg3(AlSi3O10)(OH)2
Unclassified Minerals, Mixtures, etc.
'Amphibole Supergroup'-AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
'Biotite'-

List of minerals for each chemical element

HHydrogen
H Amphibole SupergroupAX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
H PhlogopiteKMg3(AlSi3O10)(OH)2
OOxygen
O ScheeliteCa(WO4)
O UlvöspinelTiFe2O4
O MagnetiteFe2+Fe23+O4
O Cordierite(Mg,Fe)2Al3(AlSi5O18)
O AlmandineFe32+Al2(SiO4)3
O SpinelMgAl2O4
O FerberiteFeWO4
O Amphibole SupergroupAX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
O PhlogopiteKMg3(AlSi3O10)(OH)2
FFluorine
F Amphibole SupergroupAX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
MgMagnesium
Mg Cordierite(Mg,Fe)2Al3(AlSi5O18)
Mg SpinelMgAl2O4
Mg PhlogopiteKMg3(AlSi3O10)(OH)2
AlAluminium
Al Cordierite(Mg,Fe)2Al3(AlSi5O18)
Al AlmandineFe32+Al2(SiO4)3
Al SpinelMgAl2O4
Al Amphibole SupergroupAX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Al PhlogopiteKMg3(AlSi3O10)(OH)2
SiSilicon
Si Cordierite(Mg,Fe)2Al3(AlSi5O18)
Si AlmandineFe32+Al2(SiO4)3
Si Amphibole SupergroupAX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Si PhlogopiteKMg3(AlSi3O10)(OH)2
SSulfur
S MolybdeniteMoS2
S PyriteFeS2
S PyrrhotiteFe7S8
S BismuthiniteBi2S3
S ChalcopyriteCuFeS2
ClChlorine
Cl Amphibole SupergroupAX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
KPotassium
K PhlogopiteKMg3(AlSi3O10)(OH)2
CaCalcium
Ca ScheeliteCa(WO4)
TiTitanium
Ti UlvöspinelTiFe2O4
Ti Amphibole SupergroupAX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
FeIron
Fe PyriteFeS2
Fe PyrrhotiteFe7S8
Fe UlvöspinelTiFe2O4
Fe MagnetiteFe2+Fe23+O4
Fe Cordierite(Mg,Fe)2Al3(AlSi5O18)
Fe AlmandineFe32+Al2(SiO4)3
Fe FerberiteFeWO4
Fe ChalcopyriteCuFeS2
CuCopper
Cu ChalcopyriteCuFeS2
MoMolybdenum
Mo MolybdeniteMoS2
WTungsten
W ScheeliteCa(WO4)
W FerberiteFeWO4
BiBismuth
Bi BismuthBi
Bi BismuthiniteBi2S3

Regional Geology

This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.

Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org

Proterozoic
541 - 2500 Ma



ID: 3186372
Proterozoic crystalline metamorphic rocks

Age: Proterozoic (541 - 2500 Ma)

Lithology: Granitoid gneiss; orthogneiss/paragneiss

Reference: Chorlton, L.B. Generalized geology of the world: bedrock domains and major faults in GIS format: a small-scale world geology map with an extended geological attribute database. doi: 10.4095/223767. Geological Survey of Canada, Open File 5529. [154]

Mesoproterozoic - Paleoproterozoic
1000 - 2500 Ma



ID: 3143827
Proterozoic I quartzite

Age: Proterozoic (1000 - 2500 Ma)

Description: undifferentiated metamorphic

Lithology: Major:{quartzite}, Minor{mica schist,marble,amphibolite}

Reference: Asch, K. The 1:5M International Geological Map of Europe and Adjacent Areas: Development and Implementation of a GIS-enabled Concept. Geologisches Jahrbuch, SA 3. [147]

Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Heier, K. (1955): The Ørsdalen tungsten deposit. Norsk Geologisk Tidsskrift 35: 69-85
Heier, K. (1956): The Geology of the Ørsdalen District, Rogaland, S.Norway. Norsk Geologisk Tidsskrift 36, 167-211
Urban, H. (1971): Zur Kenntnis der schichtgebundenen Wolfram-Molybdän-Vererzung im Örsdalen (Rogaland), Norwegen. Mineralium Deposita 6: 177-195.
Svensen, S. Å. (2004): Noen mineralforekomster i Rogaland. Norsk Bergverksmuseum Skrift 28: 23-29

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