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Altermark talc mine, Altermark area, Rana, Nordland, Norwayi
Regional Level Types
Altermark talc mineMine
Altermark areaExploration Area
RanaMunicipality
NordlandCounty
NorwayCountry

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Latitude & Longitude (WGS84):
66° 19' 29'' North , 13° 58' 59'' East
Latitude & Longitude (decimal):
66.32486,13.98315
GeoHash:
G#: u7ccq4n4q
GRN:
N45E05
Type:
Mine
KΓΆppen climate type:
Dfc : Subarctic climate
Nearest Settlements:
PlacePopulationDistance
Hauknes1,864 (2012)5.9km
Mo i Rana17,853 (2010)7.3km
Hemnesberget1,243 (2014)19.8km
Bjerka452 (2013)20.6km
Korgen858 (2014)28.5km
Mindat Locality ID:
14151
Long-form identifier:
mindat:1:2:14151:3
GUID (UUID V4):
e1a55d90-3c93-4934-99bd-dd4d0d039137
Other Languages:
Norwegian:
Altermark talkgruve, Altermark, Rana, Nordland, Norge


There has been mining of soapstone at this locality since the 1600's. During 1932-34 the deposit was prospected, and regular operations lasted from 1934 til 2009. The production was 1,8 Mt talcum. At its most in 1960 the mine employed about 40 workers.

The Altermark talc mine, located about 20 km west of Mo i Rana, the center of the municipality of Rana, is about 800m in length going from NE to SW. It is operated in 5 different levels (status in 2000). The mine is driven on talc zones in the Annabergan ultramafite belonging to the RΓΆdingsfjΓ€llet Nappe Complex of the Norwegian Caledonides.

The central body consisting of serpentinite stands out as a very narrow and barren cliff in a valley. The mineralization is zoned with un-altered ultramafic rocks in the centre (dunite, pyroxenite and rodingite) surrounded by a serpentinite (mainly antigorite). The talc has been formed by SiO2 enriched hydrothermal action on the outskirts of the serpentinite, forming a talc/carbonate rock that is mined for talc. The main mineralization is in the contact area between the serpentinite and the surrounding rocks, and two different assemblages are described: 1) actinolite/chlorite/biotite/mica schist and 2) actinolite/chlorite-epidote/epidote/ marble or amphibolite. In this transition zone, a 0-1m layer with pure talc can be found.

Between the mine and the old dump pile is another outcrop where it is possible to study the weathered surface of the serpentinite. It is called "elephant skin", which is a very good description of how it looks.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded at this locality.


Mineral List


14 valid minerals.

Detailed Mineral List:

βœͺ Actinolite
Formula: ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Description: Birtel (2002) consistently uses the term "smaragdite" on the actinolite due to a small chromium content originating from chromite in the dunite.
β“˜ Actinolite var. Smaragdite
Formula: Ca2(Mg,Fe2+,Cr)5Si8O22(OH)2
β“˜ Almandine
Formula: Fe2+3Al2(SiO4)3
β“˜ 'Amphibole Supergroup'
Formula: AB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
β“˜ Anthophyllite
Formula: ◻{Mg2}{Mg5}(Si8O22)(OH)2
β“˜ 'Apatite'
Formula: Ca5(PO4)3(Cl/F/OH)
β“˜ 'Biotite'
Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
β“˜ Calcite
Formula: CaCO3
β“˜ Chlorapatite
Formula: Ca5(PO4)3Cl
β“˜ 'Chlorite Group'
β“˜ Dolomite
Formula: CaMg(CO3)2
β“˜ Dravite
Formula: NaMg3Al6(Si6O18)(BO3)3(OH)3(OH)
β“˜ Forsterite
Formula: Mg2SiO4
β“˜ Forsterite var. Peridot
Formula: Mg2SiO4
β“˜ 'Hornblende Root Name Group'
Formula: ◻Ca2(Z2+4Z3+)(AlSi7O22)(OH,F,Cl)2
β“˜ Hydroxylapatite
Formula: Ca5(PO4)3(OH)
β“˜ Magnesite
Formula: MgCO3
β“˜ Magnetite
Formula: Fe2+Fe3+2O4
β“˜ Muscovite
Formula: KAl2(AlSi3O10)(OH)2
β“˜ Muscovite var. Fuchsite
Formula: K(Al,Cr)3Si3O10(OH)2
β“˜ Quartz
Formula: SiO2
β“˜ Talc
Formula: Mg3Si4O10(OH)2

Gallery:

◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2β“˜ Actinolite
◻{Mg2}{Mg5}(Si8O22)(OH)2β“˜ Anthophyllite
MgCO3β“˜ Magnesite
Mg3Si4O10(OH)2β“˜ Talc

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
β“˜Magnetite4.BB.05Fe2+Fe3+2O4
β“˜Quartz4.DA.05SiO2
Group 5 - Nitrates and Carbonates
β“˜Calcite5.AB.05CaCO3
β“˜Magnesite5.AB.05MgCO3
β“˜Dolomite5.AB.10CaMg(CO3)2
Group 8 - Phosphates, Arsenates and Vanadates
β“˜Chlorapatite8.BN.05Ca5(PO4)3Cl
β“˜Hydroxylapatite8.BN.05Ca5(PO4)3(OH)
Group 9 - Silicates
β“˜Forsterite
var. Peridot		9.AC.05Mg2SiO4
β“˜9.AC.05Mg2SiO4
β“˜Almandine9.AD.25Fe2+3Al2(SiO4)3
β“˜Dravite9.CK.05NaMg3Al6(Si6O18)(BO3)3(OH)3(OH)
β“˜Anthophyllite9.DD.05β—»{Mg2}{Mg5}(Si8O22)(OH)2
β“˜Actinolite9.DE.10β—»Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
β“˜var. Smaragdite9.DE.10Ca2(Mg,Fe2+,Cr)5Si8O22(OH)2
β“˜Talc9.EC.05Mg3Si4O10(OH)2
β“˜Muscovite
var. Fuchsite		9.EC.15K(Al,Cr)3Si3O10(OH)2
β“˜9.EC.15KAl2(AlSi3O10)(OH)2
Unclassified
β“˜'Amphibole Supergroup'-AB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
β“˜'Chlorite Group'-
β“˜'Hornblende Root Name Group'-β—»Ca2(Z2+4Z3+)(AlSi7O22)(OH,F,Cl)2
β“˜'Biotite'-K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
β“˜'Apatite'-Ca5(PO4)3(Cl/F/OH)

List of minerals for each chemical element

HHydrogen
Hβ“˜ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Hβ“˜ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Hβ“˜ Anthophyllite◻{Mg2}{Mg5}(Si8O22)(OH)2
Hβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Hβ“˜ DraviteNaMg3Al6(Si6O18)(BO3)3(OH)3(OH)
Hβ“˜ Muscovite var. FuchsiteK(Al,Cr)3Si3O10(OH)2
Hβ“˜ HydroxylapatiteCa5(PO4)3(OH)
Hβ“˜ MuscoviteKAl2(AlSi3O10)(OH)2
Hβ“˜ TalcMg3Si4O10(OH)2
Hβ“˜ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
Hβ“˜ Actinolite var. SmaragditeCa2(Mg,Fe2+,Cr)5Si8O22(OH)2
Hβ“˜ ApatiteCa5(PO4)3(Cl/F/OH)
BBoron
Bβ“˜ DraviteNaMg3Al6(Si6O18)(BO3)3(OH)3(OH)
CCarbon
Cβ“˜ CalciteCaCO3
Cβ“˜ DolomiteCaMg(CO3)2
Cβ“˜ MagnesiteMgCO3
OOxygen
Oβ“˜ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Oβ“˜ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Oβ“˜ Anthophyllite◻{Mg2}{Mg5}(Si8O22)(OH)2
Oβ“˜ AlmandineFe32+Al2(SiO4)3
Oβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Oβ“˜ CalciteCaCO3
Oβ“˜ ChlorapatiteCa5(PO4)3Cl
Oβ“˜ DolomiteCaMg(CO3)2
Oβ“˜ DraviteNaMg3Al6(Si6O18)(BO3)3(OH)3(OH)
Oβ“˜ ForsteriteMg2SiO4
Oβ“˜ Muscovite var. FuchsiteK(Al,Cr)3Si3O10(OH)2
Oβ“˜ HydroxylapatiteCa5(PO4)3(OH)
Oβ“˜ MagnesiteMgCO3
Oβ“˜ MagnetiteFe2+Fe23+O4
Oβ“˜ MuscoviteKAl2(AlSi3O10)(OH)2
Oβ“˜ QuartzSiO2
Oβ“˜ TalcMg3Si4O10(OH)2
Oβ“˜ Forsterite var. PeridotMg2SiO4
Oβ“˜ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
Oβ“˜ Actinolite var. SmaragditeCa2(Mg,Fe2+,Cr)5Si8O22(OH)2
Oβ“˜ ApatiteCa5(PO4)3(Cl/F/OH)
FFluorine
Fβ“˜ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Fβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Fβ“˜ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
Fβ“˜ ApatiteCa5(PO4)3(Cl/F/OH)
NaSodium
Naβ“˜ DraviteNaMg3Al6(Si6O18)(BO3)3(OH)3(OH)
MgMagnesium
Mgβ“˜ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Mgβ“˜ Anthophyllite◻{Mg2}{Mg5}(Si8O22)(OH)2
Mgβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Mgβ“˜ DolomiteCaMg(CO3)2
Mgβ“˜ DraviteNaMg3Al6(Si6O18)(BO3)3(OH)3(OH)
Mgβ“˜ ForsteriteMg2SiO4
Mgβ“˜ MagnesiteMgCO3
Mgβ“˜ TalcMg3Si4O10(OH)2
Mgβ“˜ Forsterite var. PeridotMg2SiO4
Mgβ“˜ Actinolite var. SmaragditeCa2(Mg,Fe2+,Cr)5Si8O22(OH)2
AlAluminium
Alβ“˜ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Alβ“˜ AlmandineFe32+Al2(SiO4)3
Alβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Alβ“˜ DraviteNaMg3Al6(Si6O18)(BO3)3(OH)3(OH)
Alβ“˜ Muscovite var. FuchsiteK(Al,Cr)3Si3O10(OH)2
Alβ“˜ MuscoviteKAl2(AlSi3O10)(OH)2
Alβ“˜ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
SiSilicon
Siβ“˜ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Siβ“˜ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Siβ“˜ Anthophyllite◻{Mg2}{Mg5}(Si8O22)(OH)2
Siβ“˜ AlmandineFe32+Al2(SiO4)3
Siβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Siβ“˜ DraviteNaMg3Al6(Si6O18)(BO3)3(OH)3(OH)
Siβ“˜ ForsteriteMg2SiO4
Siβ“˜ Muscovite var. FuchsiteK(Al,Cr)3Si3O10(OH)2
Siβ“˜ MuscoviteKAl2(AlSi3O10)(OH)2
Siβ“˜ QuartzSiO2
Siβ“˜ TalcMg3Si4O10(OH)2
Siβ“˜ Forsterite var. PeridotMg2SiO4
Siβ“˜ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
Siβ“˜ Actinolite var. SmaragditeCa2(Mg,Fe2+,Cr)5Si8O22(OH)2
PPhosphorus
Pβ“˜ ChlorapatiteCa5(PO4)3Cl
Pβ“˜ HydroxylapatiteCa5(PO4)3(OH)
Pβ“˜ ApatiteCa5(PO4)3(Cl/F/OH)
ClChlorine
Clβ“˜ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Clβ“˜ ChlorapatiteCa5(PO4)3Cl
Clβ“˜ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
Clβ“˜ ApatiteCa5(PO4)3(Cl/F/OH)
KPotassium
Kβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Kβ“˜ Muscovite var. FuchsiteK(Al,Cr)3Si3O10(OH)2
Kβ“˜ MuscoviteKAl2(AlSi3O10)(OH)2
CaCalcium
Caβ“˜ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Caβ“˜ CalciteCaCO3
Caβ“˜ ChlorapatiteCa5(PO4)3Cl
Caβ“˜ DolomiteCaMg(CO3)2
Caβ“˜ HydroxylapatiteCa5(PO4)3(OH)
Caβ“˜ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
Caβ“˜ Actinolite var. SmaragditeCa2(Mg,Fe2+,Cr)5Si8O22(OH)2
Caβ“˜ ApatiteCa5(PO4)3(Cl/F/OH)
TiTitanium
Tiβ“˜ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Tiβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
CrChromium
Crβ“˜ Muscovite var. FuchsiteK(Al,Cr)3Si3O10(OH)2
Crβ“˜ Actinolite var. SmaragditeCa2(Mg,Fe2+,Cr)5Si8O22(OH)2
FeIron
Feβ“˜ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Feβ“˜ AlmandineFe32+Al2(SiO4)3
Feβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Feβ“˜ MagnetiteFe2+Fe23+O4
Feβ“˜ Actinolite var. SmaragditeCa2(Mg,Fe2+,Cr)5Si8O22(OH)2

Other Regions, Features and Areas containing this locality

Eurasian PlateTectonic Plate
EuropeContinent
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

Halstensen, S. (1995) Talk fra Ranas urolige fortid. Bergverks-nytt. 41 (9), 6-7
Birtel, Sandra (2002) Fluid-Gesteinswechselwirkung an alpinotypen ultramafischen Gesteinen der norwegischen Kaledoniden. Dissertation zur Erlangung des Doktorgrades , Der Geowissenschaftlichen FakultΓ€t der Albert-Ludwigs UniversitΓ€t Freiburg. Freiburg, Germany.
Nordrum, Fred Steinar (2010) Nyfunn av mineraler i Norge 2009-2010. STEIN. Magasin for populærgeologi, 37 (2) 4-14
Berg, B.I., Sæland, F., Nyland, A.J., Østensen, P.Ø., Nordrum, F.S., Kullerud, K. (2016) Bergverk i Norge. Kulturminner og historie. Vigmostad & Bjørke AS. pp 351-352.
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