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Lomstjønn Exploration Shaft, Åvesland, Evje og Hornnes, Agder, Norwayi
Regional Level Types
Lomstjønn Exploration ShaftShaft
ÅveslandFarm
Evje og HornnesMunicipality
AgderCounty
NorwayCountry

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Latitude & Longitude (WGS84):
58° 35' 41'' North , 7° 55' 4'' East
Latitude & Longitude (decimal):
58.59489,7.91784
GRN:
N40E03
Type:
Shaft
Köppen climate type:
Dfc : Subarctic climate
Nearest Settlements:
PlacePopulationDistance
Byglandsfjord332 (2014)10.0km
Birkeland2,254 (2010)34.6km
Vennesla10,931 (2014)36.4km
Tveit1,397 (2010)41.9km
Justvik1,630 (2014)44.7km
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
ClubLocationDistance
Sørlandets GeologiforeningKristiansand49km
Mindat Locality ID:
305190
Long-form identifier:
mindat:1:2:305190:3
GUID (UUID V4):
0
Other Languages:
Norwegian:
Lomstjønn synk, Åvesland, Evje og Hornnes, Agder, Norge


A report from the Direktoratet av Mineralforvaltning (Nixon 1969) describes a minor exploration shaft. The name was written as "Lomtjern", but that is not the way it is spelled on modern maps.

A core drill resulted in 1,5 m of pure ore at a depth of 12 m.

The locality is supposed to be about 1,4 km SSE of a sand pit and rock quarry along the road to Gautestad.

This figure is inaccurate. The Lomstjønn lake is only 840 m SSSE of the place where one is supposed to go into the woods. The locality is then expected to be at a spot about 875 m SSE of the road.

But further map study suggests that the author has made a mistake with the names of the lake.

He has made a map that doesn't correspond with the actual situation.

At the 2018 map the Lomstjønn is all but dried up and has a shape not corresponding with the drawings.

What he calls Langtjern corresponds better with the Lomstjønn with an unnamed little lake to the west.

And then the altitude map clearly shows a feature that is the result of mining activity.

Coordinates © Kartverket - https://www.kartverket.no

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


9 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:

ⓘ 'Amphibole Supergroup'
Formula: AB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
ⓘ Chalcopyrite
Formula: CuFeS2
ⓘ 'Clinopyroxene Subgroup'
ⓘ Goethite
Formula: Fe3+O(OH)
ⓘ Ilmenite
Formula: Fe2+TiO3
ⓘ Magnetite
Formula: Fe2+Fe3+2O4
ⓘ Marcasite
Formula: FeS2
ⓘ 'Orthopyroxene Subgroup'
ⓘ Pentlandite
Formula: (NixFey)Σ9S8
ⓘ 'Plagioclase'
Formula: (Na,Ca)[(Si,Al)AlSi2]O8
ⓘ Pyrite
Formula: FeS2
ⓘ Pyrrhotite
Formula: Fe1-xS
ⓘ Violarite
Formula: Fe2+Ni3+2S4

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
ⓘPentlandite2.BB.15(NixFey)Σ9S8
ⓘChalcopyrite2.CB.10aCuFeS2
ⓘPyrrhotite2.CC.10Fe1-xS
ⓘViolarite2.DA.05Fe2+Ni3+2S4
ⓘPyrite2.EB.05aFeS2
ⓘMarcasite2.EB.10aFeS2
Group 4 - Oxides and Hydroxides
ⓘGoethite4.00.Fe3+O(OH)
ⓘMagnetite4.BB.05Fe2+Fe3+2O4
ⓘIlmenite4.CB.05Fe2+TiO3
Unclassified
ⓘ'Amphibole Supergroup'-AB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
ⓘ'Clinopyroxene Subgroup'-
ⓘ'Plagioclase'-(Na,Ca)[(Si,Al)AlSi2]O8
ⓘ'Orthopyroxene Subgroup'-

List of minerals for each chemical element

HHydrogen
Hⓘ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Hⓘ GoethiteFe3+O(OH)
OOxygen
Oⓘ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Oⓘ GoethiteFe3+O(OH)
Oⓘ IlmeniteFe2+TiO3
Oⓘ MagnetiteFe2+Fe23+O4
Oⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
FFluorine
Fⓘ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
NaSodium
Naⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
AlAluminium
Alⓘ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Alⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
SiSilicon
Siⓘ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Siⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
SSulfur
Sⓘ ChalcopyriteCuFeS2
Sⓘ MarcasiteFeS2
Sⓘ Pentlandite(NixFey)Σ9S8
Sⓘ PyriteFeS2
Sⓘ PyrrhotiteFe1-xS
Sⓘ ViolariteFe2+Ni23+S4
ClChlorine
Clⓘ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
CaCalcium
Caⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
TiTitanium
Tiⓘ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Tiⓘ IlmeniteFe2+TiO3
FeIron
Feⓘ ChalcopyriteCuFeS2
Feⓘ GoethiteFe3+O(OH)
Feⓘ IlmeniteFe2+TiO3
Feⓘ MagnetiteFe2+Fe23+O4
Feⓘ MarcasiteFeS2
Feⓘ Pentlandite(NixFey)Σ9S8
Feⓘ PyriteFeS2
Feⓘ PyrrhotiteFe1-xS
Feⓘ ViolariteFe2+Ni23+S4
NiNickel
Niⓘ Pentlandite(NixFey)Σ9S8
Niⓘ ViolariteFe2+Ni23+S4
CuCopper
Cuⓘ ChalcopyriteCuFeS2

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

dirmin.no (n.d.) https://dirmin.no/sites/default/files/bibliotek/BV994.pdf
Nixon, F. (1969) A/S SulfidmalmEvje Iveland Project - Catalogue of Sulphide prospects. Bergvesenet rapport BV 994 54 pp.
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