Vote for your favorite mineral in #MinCup26! - Quartz vs. Asagiite
It's a classic vs a newbie as the most common named mineral in the crust Quartz is up against an exceedingly-rare sea foam-green mineral discovered just a few years ago Asagiite.
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Tunshomstølen, Lund, Rogaland, Norwayi
Regional Level Types
TunshomstølenProspect
LundMunicipality
RogalandCounty
NorwayCountry

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Latitude & Longitude (WGS84):
58° 35' 57'' North , 6° 30' 27'' East
Latitude & Longitude (decimal):
58.59926,6.50766
GeoHash:
G#: u4ktk5dtr
GRN:
N40E03
Type:
Prospect
Age:
1600 to 1000 Ma
Geologic Time:
Mesoproterozoic
Reference for age:
Geological Survey of Norway. The Ore Database. Deposit Area 1112 - 008, Tunshomstølen
Köppen climate type:
Dfc : Subarctic climate
Nearest Settlements:
PlacePopulationDistance
Tonstad751 (2010)14.0km
Moi1,740 (2010)16.0km
Sira584 (2013)21.8km
Vikeså715 (2010)24.5km
Gilja248 (2013)27.2km
Mindat Locality ID:
267587
Long-form identifier:
mindat:1:2:267587:2
GUID (UUID V4):
0
Other Languages:
Norwegian:
Tunshomstølen, Lund, Rogaland, Norge


Three short holes have been drilled and a 2.5x0.5m pit has been blasted out. The host rock contains alternating diffuse lighter quartzo-felspathic bands and darker more amphibolitic bands. This host is minimum 8m thick and builds a ledge over the pit; it is overlain by a quartzo-felspathic gneiss. The rusty zone around the pit is minimum 5m long and extends spotwise over more than 100m. Both rocks are cut by pegmatites. The sulphide mineralization is irregular and consists of semi-massive, networked veins and disseminated pyrrhotite and minor chalcopyrite in the amphibolitic rock. The latter is richer in biotite towards the contact with the sulphides zone.

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Standard Detailed Gallery Strunz Chemical Elements

Mineral List


3 valid minerals.

Rock Types Recorded

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

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Alphabetical List Tree Diagram

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
ⓘChalcopyrite2.CB.10aCuFeS2
ⓘPyrrhotite2.CC.10Fe1-xS
Group 4 - Oxides and Hydroxides
ⓘQuartz4.DA.05SiO2
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
ⓘ'Feldspar Group'-

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
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ⓘ QuartzSiO2
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
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
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ⓘ QuartzSiO2
SSulfur
Sⓘ ChalcopyriteCuFeS2
Sⓘ PyrrhotiteFe1-xS
ClChlorine
Clⓘ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
KPotassium
Kⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
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
FeIron
Feⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Feⓘ ChalcopyriteCuFeS2
Feⓘ PyrrhotiteFe1-xS
CuCopper
Cuⓘ ChalcopyriteCuFeS2

Other Databases

Link to Geological Survey of Norway:5005

Other Regions, Features and Areas containing this locality

Baltic Shield (Fennoscandian Shield)Shield
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

Geological Survey of Norway. The Ore Database. Deposit Area 1112 - 008, Tunshomstølen (Last updated 25.feb.2005)
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