Sulphide-bearing hydrothermal quartz veins mined for Cu.
Worked for copper during several periods between 1691 to 1888 by the Åmdals Verk mining company. The sorted ore was transported during the winter over the moors to Åmdal.
The mine consist of several adits and shafts. The longest adit is more than 100 m long, and one of the vertical shafts is assumed to be 80m deep.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List

ⓘ Bornite

ⓘ Tellurobismuthite (TL)

ⓘ Wittichenite

9 valid minerals. 1 (TL) - type locality of 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

ⓘ Metasandstone

ⓘ 'Pegmatite'

Detailed Mineral List:

ⓘ Bornite

Formula: Cu₅FeS₄

References:

Oftedal, I. (1959): On the occurrence of tellurium in Norwegian galenas. Norsk Geologisk Tidsskrift. 39, 75-79

ⓘ Chalcanthite

Formula: CuSO₄ · 5H₂O

References:

Raade, Gunnar (1989) Om feilidentifikasjoner ved røntgenbestemmelse av mineraler, og kontroll av filmer av sulfat-hydrater. Mineralogisk-Geologisk Museum - Universitetet i Oslo- Interne notater, Geologisk Museums venner. 134-138p.136

ⓘ Chalcocite

Formula: Cu₂S

References:

Vogt, J. H. L. (1886) Norske ertsforekomster III: Om den Thelemark-Sætersdal'ske ertsformation [Norwegian ore deposits III: About the Thelemark-Sætersdal ore formation]. Archiv for mathematik og naturvidenskab , 10. 16-59 p.24

ⓘ Chalcopyrite

Formula: CuFeS₂

References:

Esmark, [J.] (1815): Description of a new ore of tellurium. transactions of the Geological Society. 3, 413-414.

ⓘ Molybdenite

Formula: MoS₂

References:

Esmark, [J.] (1815): Description of a new ore of tellurium. transactions of the Geological Society. 3, 413-414.

ⓘ Quartz

Formula: SiO₂

References:

Geological Survey of Norway (NGU). The Ore Database (Malmdatabasen). Deposit Area 831 - 007. Mosnap

ⓘ Silver

Formula: Ag

References:

Vogt 1888, p. 8, Neumann 1985, p. 4.

ⓘ Tellurobismuthite (TL)

Formula: Bi₂Te₃

Type Locality:

Description: Most likly to be the first place tellurobismuthite was found, but then described as "a new ore of tellurium", this description also have been noted as tetradymite, but later investigations proved it to be tellurobismuthite.

References:

Esmark, [J.] (1815): Description of a new ore of tellurium. transactions of the Geological Society. 3, 413-414.

Neumann, Henrich (1985) Norges Mineraler [The Minerals of Norway]. Norges geologiske Undersøkelse Skrifter Vol. 68. Universitetsforlaget

ⓘ Wittichenite

Formula: Cu₃BiS₃

Habit: allotriomorphic grains

Description: Found as inclusion in bornite

References:

Nordrum, Fred Steinar (1972) Wittichenite, Cu3BiS3, from Tokke and Fyresdal in west Telemark. Contributions to the mineralogy of Norway, no. 49. Norsk Geologisk Tidsskrift [Norwegian Journal of Geology], 52 (3) Norsk Geologisk Forening (Geological Society of Norway) 257-271

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
ⓘ	Silver	1.AA.05	Ag
Group 2 - Sulphides and Sulfosalts
ⓘ	Chalcocite	2.BA.05	Cu₂S
ⓘ	Bornite	2.BA.15	Cu₅FeS₄
ⓘ	Chalcopyrite	2.CB.10a	CuFeS₂
ⓘ	Tellurobismuthite (TL)	2.DC.05	Bi₂Te₃
ⓘ	Molybdenite	2.EA.30	MoS₂
ⓘ	Wittichenite	2.GA.20	Cu₃BiS₃
Group 4 - Oxides and Hydroxides
ⓘ	Quartz	4.DA.05	SiO₂
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
ⓘ	Chalcanthite	7.CB.20	CuSO₄ · 5H₂O

List of minerals for each chemical element

H	Hydrogen
H	ⓘ Chalcanthite	CuSO₄ · 5H₂O
O	Oxygen
O	ⓘ Chalcanthite	CuSO₄ · 5H₂O
O	ⓘ Quartz	SiO₂
Si	Silicon
Si	ⓘ Quartz	SiO₂
S	Sulfur
S	ⓘ Bornite	Cu₅FeS₄
S	ⓘ Chalcopyrite	CuFeS₂
S	ⓘ Chalcanthite	CuSO₄ · 5H₂O
S	ⓘ Chalcocite	Cu₂S
S	ⓘ Molybdenite	MoS₂
S	ⓘ Wittichenite	Cu₃BiS₃
Fe	Iron
Fe	ⓘ Bornite	Cu₅FeS₄
Fe	ⓘ Chalcopyrite	CuFeS₂
Cu	Copper
Cu	ⓘ Bornite	Cu₅FeS₄
Cu	ⓘ Chalcopyrite	CuFeS₂
Cu	ⓘ Chalcanthite	CuSO₄ · 5H₂O
Cu	ⓘ Chalcocite	Cu₂S
Cu	ⓘ Wittichenite	Cu₃BiS₃
Mo	Molybdenum
Mo	ⓘ Molybdenite	MoS₂
Ag	Silver
Ag	ⓘ Silver	Ag
Te	Tellurium
Te	ⓘ Tellurobismuthite	Bi₂Te₃
Bi	Bismuth
Bi	ⓘ Tellurobismuthite	Bi₂Te₃
Bi	ⓘ Wittichenite	Cu₃BiS₃

Other Databases

Link to Geological Survey of Norway:	5562

Other Regions, Features and Areas containing this locality

Baltic Shield (Fennoscandian Shield)Shield

Eurasian PlateTectonic Plate

EuropeContinent

Norway

⭔Vestfold og Telemark (2020-2023)County

ScandinaviaRegion

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References

Geological Survey of Norway (NGU). The Ore Database (Malmdatabasen). Deposit Area 831 - 007. Mosnap (Last updated 20.nov.2007)

aps.ngu.no (n.d.) https://aps.ngu.no/pls/oradb/minres_deposit_fakta_NY_KS.Main?p_objid=5562&p_spraak=E

Esmark, [J.] (1815): Description of a new ore of tellurium. Transactions of the Geological Society. 3, 413-414. [First description of tellurobismuthite, as Tellur-Wismuth]

Dahll, Tellef (1861) Om Tellemarkens geologi [On the Geology of Telemark]. Nyt magazin for naturvidenskaberne [New magazine for the natural sciences], 11. 137-172

Oftedal, I. (1959): On the occurrence of tellurium in Norwegian galenas. Norsk Geologisk Tidsskrift. 39, 75-79 [analyse of Te in Bornite from Mosnap p.79]

Berg, Bjørn Ivar (2006) Moisesberg i Fyresdal 1541-1549 - Norsk Bergverksmuseums undersøkelser av et kobberbergverk i Telemark. Novus Forlag and Norsk Bergverksmuseum, Oslo. p.1-400.

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