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Engebøfjellet Eclogite Deposit, Naustdal, Sunnfjord, Vestland, Norwayi
Regional Level Types
Engebøfjellet Eclogite DepositDeposit
NaustdalMunicipality (Former)
SunnfjordMunicipality
VestlandCounty
NorwayCountry
Engebøfjellet Eclogite Deposit, Sogn og Fjordane, Norway

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Latitude & Longitude (WGS84):
61° 29' 30'' North , 5° 26' 3'' East
Latitude & Longitude (decimal):
61.49171,5.43430
GeoHash:
G#: u4gvgdjph
GRN:
N41E02
Type:
Deposit
Age:
419.2 ± 3.2 to 358.9 ± 0.4 Ma
Geologic Time:
Devonian
Reference for age:
Geological Survey of Norway. The Ore Database. Deposit Area 1433 - 001. Engeb
Köppen climate type:
Cfb : Temperate oceanic climate
Nearest Settlements:
PlacePopulationDistance
Dale988 (2014)14.4km
Naustdal1,071 (2014)15.1km
Brandsøy459 (2013)20.0km
Førde8,510 (2013)22.9km
Florø8,230 (2010)24.4km
Mindat Locality ID:
234301
Long-form identifier:
mindat:1:2:234301:6
GUID (UUID V4):
c72a8a18-4000-49b0-aa6b-3090a17565ae
Other Languages:
Norwegian:
Engebøfjellet-eklogitten, Naustdal, Sunnfjord, Vestland, Norge


One of the largest eclogite bodies in the Western Gneiss Region, Norway, covering an area of about 2500 x 500 m.

From the NGU datasheet (Deposit 4647 - 001 Engebøfjellet):
"Engebøfjellet was recognized as a rutile-rich eclogite around 1975 by chief geologist Hans-Peter Geis from the Elkem company. Subsequent studies by the NGU, Elkem and S&F County in 1978-89 and DuPont/Conoco during the 1990'ies confirmed the deposit's potential as a world-class source of rutile. Additionally, garnet represents an important added value, especially of interest for use as abrasive.
In 2006 the mining rights were taken over by Nordic Mining ASA. In 2015 they were granted permission for their mine waste deposition plans, allowing the waste to be depositted in the fjord at a depth of 300 m. The Nordic Mining company plans to produce 80.000 t/y rutile concentrate based upon the mining of 4 Mt/y ore at a cut-off grade of 3% TiO2."

The website of Nordic Mining does not present (Jan. 2022) concrete information on the current status of the plans to commence mining at Engebøfjellet.

Additionally, mining company Arctic Mineral Resources (AMR), has obtained the rights to mine parts of this deposit for garnet, with rutile as subordinate by-product. These two companies seem to be entangled in a bitter fight over the mining rights (Situation Jan. 2022).

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


12 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
Formula: Fe2+3Al2(SiO4)3
ⓘ 'Amphibole Supergroup'
Formula: AB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
ⓘ Dolomite
Formula: CaMg(CO3)2
ⓘ Ferro-actinolite
Formula: ◻Ca2Fe2+5(Si8O22)(OH)2
ⓘ Ferro-hornblende
Formula: ◻Ca2(Fe2+4Al)(Si7Al)O22(OH)2
ⓘ Ferro-katophorite
Formula: {Na}{CaNa}{Fe2+4Al}[(AlSi7)O22](OH)2
ⓘ Katophorite
Formula: {Na}{CaNa}{Mg4Al}[(AlSi7)O22](OH)2
ⓘ Magnesio-hornblende
Formula: ◻Ca2(Mg4Al)(Si7Al)O22(OH)2
Description: Retrograde amphibole as rims on clinopyroxene
ⓘ Muscovite
Formula: KAl2(AlSi3O10)(OH)2
ⓘ Muscovite var. Phengite
Formula: KAl1.5(Mg,Fe)0.5(Al0.5Si3.5O10)(OH)2
ⓘ Omphacite
Formula: (NaaCabFe2+cMgd)(AleFe3+fFe2+gMgh)Si2O6
ⓘ 'Pyroxene Group'
Formula: ADSi2O6
ⓘ Quartz
Formula: SiO2
ⓘ Rutile
Formula: TiO2
ⓘ Winchite
Formula: ◻{CaNa}{Mg4Al}(Si8O22)(OH)2
Description: Amphibole in eclogite matrix and as inclusions in garnet

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
ⓘQuartz4.DA.05SiO2
ⓘRutile4.DB.05TiO2
Group 5 - Nitrates and Carbonates
ⓘDolomite5.AB.10CaMg(CO3)2
Group 9 - Silicates
ⓘAlmandine9.AD.25Fe2+3Al2(SiO4)3
ⓘOmphacite9.DA.20(NaaCabFe2+cMgd)(AleFe3+fFe2+gMgh)Si2O6
ⓘFerro-actinolite9.DE.10◻Ca2Fe2+5(Si8O22)(OH)2
ⓘFerro-hornblende9.DE.10◻Ca2(Fe2+4Al)(Si7Al)O22(OH)2
ⓘMagnesio-hornblende9.DE.10◻Ca2(Mg4Al)(Si7Al)O22(OH)2
ⓘFerro-katophorite9.DE.20{Na}{CaNa}{Fe2+4Al}[(AlSi7)O22](OH)2
ⓘWinchite9.DE.20◻{CaNa}{Mg4Al}(Si8O22)(OH)2
ⓘKatophorite9.DE.20{Na}{CaNa}{Mg4Al}[(AlSi7)O22](OH)2
ⓘMuscovite9.EC.15KAl2(AlSi3O10)(OH)2
ⓘvar. Phengite9.EC.15KAl1.5(Mg,Fe)0.5(Al0.5Si3.5O10)(OH)2
Unclassified
ⓘ'Amphibole Supergroup'-AB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
ⓘ'Pyroxene Group'-ADSi2O6

List of minerals for each chemical element

HHydrogen
Hⓘ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Hⓘ Ferro-actinolite◻Ca2Fe52+(Si8O22)(OH)2
Hⓘ Ferro-hornblende◻Ca2(Fe42+Al)(Si7Al)O22(OH)2
Hⓘ Ferro-katophorite{Na}{CaNa}{Fe42+Al}[(AlSi7)O22](OH)2
Hⓘ Magnesio-hornblende◻Ca2(Mg4Al)(Si7Al)O22(OH)2
Hⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Hⓘ Muscovite var. PhengiteKAl1.5(Mg,Fe)0.5(Al0.5Si3.5O10)(OH)2
Hⓘ Winchite◻{CaNa}{Mg4Al}(Si8O22)(OH)2
Hⓘ Katophorite{Na}{CaNa}{Mg4Al}[(AlSi7)O22](OH)2
CCarbon
Cⓘ DolomiteCaMg(CO3)2
OOxygen
Oⓘ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Oⓘ AlmandineFe32+Al2(SiO4)3
Oⓘ DolomiteCaMg(CO3)2
Oⓘ Ferro-actinolite◻Ca2Fe52+(Si8O22)(OH)2
Oⓘ Ferro-hornblende◻Ca2(Fe42+Al)(Si7Al)O22(OH)2
Oⓘ Ferro-katophorite{Na}{CaNa}{Fe42+Al}[(AlSi7)O22](OH)2
Oⓘ Magnesio-hornblende◻Ca2(Mg4Al)(Si7Al)O22(OH)2
Oⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Oⓘ Omphacite(NaaCabFec2+Mgd)(AleFef3+Feg2+Mgh)Si2O6
Oⓘ Muscovite var. PhengiteKAl1.5(Mg,Fe)0.5(Al0.5Si3.5O10)(OH)2
Oⓘ QuartzSiO2
Oⓘ RutileTiO2
Oⓘ Winchite◻{CaNa}{Mg4Al}(Si8O22)(OH)2
Oⓘ Katophorite{Na}{CaNa}{Mg4Al}[(AlSi7)O22](OH)2
Oⓘ Pyroxene GroupADSi2O6
FFluorine
Fⓘ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
NaSodium
Naⓘ Ferro-katophorite{Na}{CaNa}{Fe42+Al}[(AlSi7)O22](OH)2
Naⓘ Omphacite(NaaCabFec2+Mgd)(AleFef3+Feg2+Mgh)Si2O6
Naⓘ Winchite◻{CaNa}{Mg4Al}(Si8O22)(OH)2
Naⓘ Katophorite{Na}{CaNa}{Mg4Al}[(AlSi7)O22](OH)2
MgMagnesium
Mgⓘ DolomiteCaMg(CO3)2
Mgⓘ Magnesio-hornblende◻Ca2(Mg4Al)(Si7Al)O22(OH)2
Mgⓘ Omphacite(NaaCabFec2+Mgd)(AleFef3+Feg2+Mgh)Si2O6
Mgⓘ Muscovite var. PhengiteKAl1.5(Mg,Fe)0.5(Al0.5Si3.5O10)(OH)2
Mgⓘ Winchite◻{CaNa}{Mg4Al}(Si8O22)(OH)2
Mgⓘ Katophorite{Na}{CaNa}{Mg4Al}[(AlSi7)O22](OH)2
AlAluminium
Alⓘ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Alⓘ AlmandineFe32+Al2(SiO4)3
Alⓘ Ferro-hornblende◻Ca2(Fe42+Al)(Si7Al)O22(OH)2
Alⓘ Ferro-katophorite{Na}{CaNa}{Fe42+Al}[(AlSi7)O22](OH)2
Alⓘ Magnesio-hornblende◻Ca2(Mg4Al)(Si7Al)O22(OH)2
Alⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Alⓘ Omphacite(NaaCabFec2+Mgd)(AleFef3+Feg2+Mgh)Si2O6
Alⓘ Muscovite var. PhengiteKAl1.5(Mg,Fe)0.5(Al0.5Si3.5O10)(OH)2
Alⓘ Winchite◻{CaNa}{Mg4Al}(Si8O22)(OH)2
Alⓘ Katophorite{Na}{CaNa}{Mg4Al}[(AlSi7)O22](OH)2
SiSilicon
Siⓘ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Siⓘ AlmandineFe32+Al2(SiO4)3
Siⓘ Ferro-actinolite◻Ca2Fe52+(Si8O22)(OH)2
Siⓘ Ferro-hornblende◻Ca2(Fe42+Al)(Si7Al)O22(OH)2
Siⓘ Ferro-katophorite{Na}{CaNa}{Fe42+Al}[(AlSi7)O22](OH)2
Siⓘ Magnesio-hornblende◻Ca2(Mg4Al)(Si7Al)O22(OH)2
Siⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Siⓘ Omphacite(NaaCabFec2+Mgd)(AleFef3+Feg2+Mgh)Si2O6
Siⓘ Muscovite var. PhengiteKAl1.5(Mg,Fe)0.5(Al0.5Si3.5O10)(OH)2
Siⓘ QuartzSiO2
Siⓘ Winchite◻{CaNa}{Mg4Al}(Si8O22)(OH)2
Siⓘ Katophorite{Na}{CaNa}{Mg4Al}[(AlSi7)O22](OH)2
Siⓘ Pyroxene GroupADSi2O6
ClChlorine
Clⓘ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
KPotassium
Kⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Kⓘ Muscovite var. PhengiteKAl1.5(Mg,Fe)0.5(Al0.5Si3.5O10)(OH)2
CaCalcium
Caⓘ DolomiteCaMg(CO3)2
Caⓘ Ferro-actinolite◻Ca2Fe52+(Si8O22)(OH)2
Caⓘ Ferro-hornblende◻Ca2(Fe42+Al)(Si7Al)O22(OH)2
Caⓘ Ferro-katophorite{Na}{CaNa}{Fe42+Al}[(AlSi7)O22](OH)2
Caⓘ Magnesio-hornblende◻Ca2(Mg4Al)(Si7Al)O22(OH)2
Caⓘ Omphacite(NaaCabFec2+Mgd)(AleFef3+Feg2+Mgh)Si2O6
Caⓘ Winchite◻{CaNa}{Mg4Al}(Si8O22)(OH)2
Caⓘ Katophorite{Na}{CaNa}{Mg4Al}[(AlSi7)O22](OH)2
TiTitanium
Tiⓘ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Tiⓘ RutileTiO2
FeIron
Feⓘ AlmandineFe32+Al2(SiO4)3
Feⓘ Ferro-actinolite◻Ca2Fe52+(Si8O22)(OH)2
Feⓘ Ferro-hornblende◻Ca2(Fe42+Al)(Si7Al)O22(OH)2
Feⓘ Ferro-katophorite{Na}{CaNa}{Fe42+Al}[(AlSi7)O22](OH)2
Feⓘ Omphacite(NaaCabFec2+Mgd)(AleFef3+Feg2+Mgh)Si2O6
Feⓘ Muscovite var. PhengiteKAl1.5(Mg,Fe)0.5(Al0.5Si3.5O10)(OH)2

Other Databases

Wikipedia:https://no.wikipedia.org/wiki/Engeb%C3%B8fjellet
Wikidata ID:Q17769644
Link to Geological Survey of Norway:12376

Other Regions, Features and Areas containing this locality

Baltic Shield (Fennoscandian Shield)Shield
Eurasian PlateTectonic Plate
EuropeContinent
Norway
ScandinaviaRegion

This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.

References

Geological Survey of Norway. The Ore Database. Deposit Area 1433 - 001. Engebøfjellet (Last updated 14. okt. 2017)
(n.d.)
Korneliussen, A. (1978) Rutil i eklogitter, Sunnfjord. ;Norges geologiske undersøkelse. NGU-rapport 1717/1. 24 pp.
Korneliussen, A. (1980) Tunge bergarter, Sunnfjord. Norges geologiske undersøkelse. NGU-rapport 1717/2. 7 pp.
Korneliussen, A. (1980) Jern- og titan-forekomster tilknyttet gabbroide, amfibolittiske og eklogittiske bergarter i Sunnfjord, Sogn og Fjordane. ;Norges geologiske undersøkelse. NGU-rapport 1717/3. 39 pp.
Korneliussen, A., Furuhaug, L. (1991) Fureviknipa og Engebøfjellet rutilforekomster ved Førdefjorden, Sogn og Fjordane. Norges geologiske undersøkelse. NGU-rapport 91.171. 17 pp.
Korneliussen, A., Mathiesen, C. O., Dormann, P., Erambert, M., & Furuhaug, L. (1992). Rutilforekomster tilknyttet eklogittbergarter på Vestlandet og metasomatisk omvandlede bergarter og metasedimenter i Bamble-Arendal-regionen.
Korneliussen, A., Ahrenberg, E., Furuhaug, L., Garson, M., Staw, J., Fossflaten, G. (1996) Core-drilling at Engebøfjellet 1995-96. Dhl to Dh5. Norges geologiske undersøkelse. NGU-rapport 96.062. 155 pp.
Mauring, E., Gellein, J. (1996) Interpretation of a gravity profile across the Engebøfjellet rutile-bearing eclogite deposit. Norges geologiske undersøkelse. NGU-rapport 96.061. 14 pp.
Korneliussen, A., Erambert, M. (1997) Core-drilling at the Engebøfjell rutile-bearing eclogite 1995-96. Norges geologiske undersøkelse. NGU-rapport; No.97.014. 141 pp.
Mauring, E., Gellein, J., Korneliussen, A. (1997) Interpretation of two gravity profiles across the Engebøfjellet rutile-bearing eclogite deposit. Norges geologiske undersøkelse. NGU-rapport 97.002. 21 pp.
Mauring, E., Gellein, J. (1997) Interpretation of gravity profiles at the Engebøfjellet rutile-bearing eclogite deposit. Norges geologiske undersøkelse. NGU-rapport 97.173. 29 pp.
Korneliussen, A., Braathen, A., Erambert, M., Lutro, O., Ragnhildstveit, J. (1998) The geology of the Engebøfjell eclogite deposit and its regional setting. Norges geologiske undersøkelse. NGU-rapport 98.081. 121 pp.
Korneliussen, Are, Ragnhildstveit, Jomar, Lutro, Ole, Erambert, Muriel, Braathen, Alvar, McLimans, Roger (2000) Rutile in eclogites as a mineral resource in the Sunnfjord Region, Western Norway. Norges Geologiske Undersøkelse 436 p.39-47.
Grimstvedt, A., Korneliussen, A. (2000) Bruk av XRD i kvantitative mineralbestemmelser-Eksempel Engebøfjellet. Norges geologiske undersøkelse. NGU-rapport 2000.061. 43 pp.
Svensen, H., Jamtveit, B., Banks, D.A. & Austrheim, H.(2001): Halogen contents of eclogite facies fluid inclusions and minerals: Caledonides, western Norway. Journal of metamorphic Geology, 19, 165-178
Korneliussen, A. (2001) Rutilressurser i Sunnfjord-regionen, Sogn og Fjordane. Norges geologiske undersøkelse. NGU-rapport 2001.102. 27 pp.
www.nordicmining.com (n.d.) https://www.nordicmining.com/
Korneliussen, A., Gautneb, H., Raaness, A. (2008) Characterisation of garnet, Engebøfjellet rutile deposit. Norges geologiske undersøkelse. NGU-rapport 2008.082. 203 pp.
Korneliussen, A., Wanvik, J. E., Broekmans, M. A. T. M. (2008) Engebøfjellet: prospect of a major rutile deposit. Norges geologiske undersøkelse. NGU-rapport 2007.055. 19 pp.
Korneliussen, A. (2008) Rutile ore characteristics, Engebøfjellet. Norges geologiske undersøkelse. NGU-rapport 2008.085. 74 pp.
Kleppe, S. (2013) The Engebøfjellet Eclogite, Sunnfjord. Petrology and modal analysis of a world class rutile-ore deposit. Master Thesis in Geosciences. University of Oslo. 151 pp.
Braathen, Alvar, Erambert, Muriel (2014) Structural and metamorphic history of the Engebøfjellet Eclogite and the exhumation of the Western Gneiss Region, Norway. Norwegian Journal of Geology - Norsk Geologisk Tidsskrift, 94 (1) 53-76
www.arcminres.com (n.d.) https://www.arcminres.com/no/
d2zbxcnktjvvs5.cloudfront.net (n.d.) https://d2zbxcnktjvvs5.cloudfront.net/1620730183/engeboe-updated-definitive-feasibility-study-presentation.pdf
www.at.no (n.d.) https://www.at.no/anlegg/har-sokt-konsesjon-pa-gruvedrift/590936
www.firda.no (2021) https://www.firda.no/artic-mineral-resources-har-anka-til-lagmannsretten/s/5-15-1323026
kommunikasjon.ntb.no (n.d.) https://kommunikasjon.ntb.no/pressemelding/arctic-mineral-resources-vant-delvis-frem-i-soksmalet-mot-nordic-rutile?publisherId=17847672&releaseId=17918569
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