PGM-Ni-Cu deposit located in the Grong area, 5 km north of the Skorovas mine and 200 km NE of the town Trondheim. An irregular lens of massive sulphides 20 m long and 2 m wide.

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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!

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Alphabetical List Tree Diagram

ⓘ Gabbro

ⓘ Greenstone

Detailed Mineral List:

ⓘ Albite

Formula: Na(AlSi₃O₈)

References:

Geological Survey of Norway. The Ore Database. Deposit Area 1739 - 008. Lillefjellklumpen.

ⓘ 'Amphibole Supergroup'

Formula: AB₂C₅((Si,Al,Ti)₈O₂₂)(OH,F,Cl,O)₂

References:

Geological Survey of Norway. The Ore Database. Deposit Area 1739 - 008. Lillefjellklumpen.

ⓘ Chalcopyrite

Formula: CuFeS₂

References:

Foslie, S. and Høst, M.J. (1932): Platina i sulfidisk nikkelmalm. Norges Geologiske Undersøkelse. 137, 1-171

ⓘ Gold

Formula: Au

Description: Microprobe analysis by Grønlie gives 73% Au and 27% Ag. Electrum occure in chalcopyrite.

References:

Grønlie, A. (1984): PGM-mineraliseringen ved Lillefjellklumpen nikkel-magnetkisforekomst, Nord-Trøndelag. Abstract. BVLI symp. Trondheim, okt.1984 (cited in Neumann, H. (1985): Norges Mineraler. Norges geologiske Undersøkelse Skrifter 68, p. 8)

ⓘ Gold var. Electrum

Formula: (Au,Ag)

Description: Microprobe analysis by Grønlie gives 73% Au and 27% Ag. Electrum occure in chalcopyrite.

References:

ⓘ Magnetite

Formula: Fe²⁺Fe³⁺₂O₄

References:

Grønlie, Arne (1988) Platinum-group minerals in the Lillefjellklumpen nickel-copper deposit, Nord-Trøndelag, Norway. Norsk Geologisk Tidsskrift [Norwegian Journal of Geology], 68 (1) Norsk Geologisk Forening (Geological Society of Norway) 65-72

ⓘ Marcasite

Formula: FeS₂

References:

Sæbö et al. (1960): Note on "birds-eye" textures in some Norwegian pyrrhotite-bearing ores. årbok 1959. Norges Geologiske Undersøkelse 211, 205-2011

ⓘ Merenskyite

Formula: PdTe₂

Description: Most "common" Pd/Pt mineral at the locality, with a Pt/Pd content in the ore of 4 ppm. It occure as 10-20 microm. sized inclutions in pyrrhotite or chalcopyrite with other Pd/Pt tellurides.

References:

Henrich Neumann (1985) Norges Mineraler [The Minerals of Norway]. Norges geologiske Undersøkelse Skrifter Vol. 68. Universitetsforlagetp.35

ⓘ Moncheite

Formula: Pt(Te,Bi)₂

Description: One grain found by Grønlie in pentlandite, and in "solid solution" with other Pd and Pt tellurides.

References:

ⓘ Pentlandite

Formula: (Ni_xFe_y)_Σ9S₈

References:

ⓘ Pyrite

Formula: FeS₂

Description: "Bravoite" is an alteration product after pentlandite.

References:

Foslie, S. and Høst, M.J. (1932): Platina i sulfidisk nikkelmalm. Norges Geologiske Undersøkelse. 137, 1-171

ⓘ Pyrite var. Bravoite

Formula: (Fe,Ni)S₂

Description: "Bravoite" is an alteration product after pentlandite.

References:

Foslie, S. and Høst, M.J. (1932): Platina i sulfidisk nikkelmalm. Norges Geologiske Undersøkelse. 137, 1-171

ⓘ Pyrrhotite

Formula: Fe_1-xS

References:

ⓘ Sperrylite

Formula: PtAs₂

Description: Grains to 20 microm.

References:

ⓘ Temagamite ?

Formula: Pd₃HgTe₃

Description: A mercurian palladium telluride found as a small (5 microm.) inclusion in merenskyite, probably temagamite

References:

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
ⓘ	Gold	1.AA.05	Au
ⓘ	var. Electrum	1.AA.05	(Au,Ag)
Group 2 - Sulphides and Sulfosalts
ⓘ	Chalcopyrite	2.CB.10a	CuFeS₂
ⓘ	Marcasite	2.EB.10a	FeS₂
ⓘ	Merenskyite	2.EA.20	PdTe₂
ⓘ	Moncheite	2.EA.20	Pt(Te,Bi)₂
ⓘ	Pentlandite	2.BB.15	(Ni_xFe_y)_Σ9S₈
ⓘ	Pyrite	2.EB.05a	FeS₂
ⓘ	var. Bravoite	2.EB.05a	(Fe,Ni)S₂
ⓘ	Pyrrhotite	2.CC.10	Fe_1-xS
ⓘ	Sperrylite	2.EB.05a	PtAs₂
ⓘ	Temagamite ?	2.BC.50	Pd₃HgTe₃
Group 4 - Oxides and Hydroxides
ⓘ	Magnetite	4.BB.05	Fe²⁺Fe³⁺₂O₄
Group 9 - Silicates
ⓘ	Albite	9.FA.35	Na(AlSi₃O₈)
Unclassified Minerals, Rocks, etc.
ⓘ	'Amphibole Supergroup'	-	AB₂C₅((Si,Al,Ti)₈O₂₂)(OH,F,Cl,O)₂

List of minerals for each chemical element

H	Hydrogen
H	ⓘ Amphibole Supergroup	AB₂C₅((Si,Al,Ti)₈O₂₂)(OH,F,Cl,O)₂
O	Oxygen
O	ⓘ Magnetite	Fe²⁺Fe₂³⁺O₄
O	ⓘ Amphibole Supergroup	AB₂C₅((Si,Al,Ti)₈O₂₂)(OH,F,Cl,O)₂
O	ⓘ Albite	Na(AlSi₃O₈)
F	Fluorine
F	ⓘ Amphibole Supergroup	AB₂C₅((Si,Al,Ti)₈O₂₂)(OH,F,Cl,O)₂
Na	Sodium
Na	ⓘ Albite	Na(AlSi₃O₈)
Al	Aluminium
Al	ⓘ Amphibole Supergroup	AB₂C₅((Si,Al,Ti)₈O₂₂)(OH,F,Cl,O)₂
Al	ⓘ Albite	Na(AlSi₃O₈)
Si	Silicon
Si	ⓘ Amphibole Supergroup	AB₂C₅((Si,Al,Ti)₈O₂₂)(OH,F,Cl,O)₂
Si	ⓘ Albite	Na(AlSi₃O₈)
S	Sulfur
S	ⓘ Chalcopyrite	CuFeS₂
S	ⓘ Pyrrhotite	Fe_1-xS
S	ⓘ Pentlandite	(Ni_xFe_y)_Σ9S₈
S	ⓘ Pyrite var. Bravoite	(Fe,Ni)S₂
S	ⓘ Marcasite	FeS₂
S	ⓘ Pyrite	FeS₂
Cl	Chlorine
Cl	ⓘ Amphibole Supergroup	AB₂C₅((Si,Al,Ti)₈O₂₂)(OH,F,Cl,O)₂
Ti	Titanium
Ti	ⓘ Amphibole Supergroup	AB₂C₅((Si,Al,Ti)₈O₂₂)(OH,F,Cl,O)₂
Fe	Iron
Fe	ⓘ Chalcopyrite	CuFeS₂
Fe	ⓘ Pyrrhotite	Fe_1-xS
Fe	ⓘ Pentlandite	(Ni_xFe_y)_Σ9S₈
Fe	ⓘ Pyrite var. Bravoite	(Fe,Ni)S₂
Fe	ⓘ Marcasite	FeS₂
Fe	ⓘ Magnetite	Fe²⁺Fe₂³⁺O₄
Fe	ⓘ Pyrite	FeS₂
Ni	Nickel
Ni	ⓘ Pentlandite	(Ni_xFe_y)_Σ9S₈
Ni	ⓘ Pyrite var. Bravoite	(Fe,Ni)S₂
Cu	Copper
Cu	ⓘ Chalcopyrite	CuFeS₂
As	Arsenic
As	ⓘ Sperrylite	PtAs₂
Pd	Palladium
Pd	ⓘ Merenskyite	PdTe₂
Pd	ⓘ Temagamite	Pd₃HgTe₃
Ag	Silver
Ag	ⓘ Gold var. Electrum	(Au,Ag)
Te	Tellurium
Te	ⓘ Moncheite	Pt(Te,Bi)₂
Te	ⓘ Merenskyite	PdTe₂
Te	ⓘ Temagamite	Pd₃HgTe₃
Pt	Platinum
Pt	ⓘ Moncheite	Pt(Te,Bi)₂
Pt	ⓘ Sperrylite	PtAs₂
Au	Gold
Au	ⓘ Gold var. Electrum	(Au,Ag)
Au	ⓘ Gold	Au
Hg	Mercury
Hg	ⓘ Temagamite	Pd₃HgTe₃
Bi	Bismuth
Bi	ⓘ Moncheite	Pt(Te,Bi)₂

Other Databases

Link to Geological Survey of Norway:	1739 - 008

Other Regions, Features and Areas containing this locality

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References

Geological Survey of Norway. The Ore Database. Deposit Area 1739 - 008. Lillefjellklumpen. (Last updated 25.feb.2005)

https://foreninger.uio.no/ngf/ngt/pdfs/NGT_68_1_065-072.pdf [Grønlie 1988]

Foslie, S. and Høst, M.J. (1932) Platina i sulfidisk nikkelmalm. Norges Geologiske Undersøkelse. 137: 1-171

Grønlie, A. (1984) PGM-mineraliseringen ved Lillefjellklumpen nikkel-magnetkisforekomst, Nord-Trøndelag. Abstract. BVLI symp. Trondheim, okt.1984

Nilsson, L. P. & Larsen, R. B. (1998) Edle mineraler i mafiske og ultramafiske bergarter- en oppsummering av platina-gruppe mineraler (PGM) funnet i Norge i de senere år. Norsk Bergverksmuseum Skrift 14: 40-49

http://www.nags.net/Mineralsymposium/1998/Nilsson%20&%20Larsen%20(1998).pdf [Nilsson & Larsen 1988]

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Lillefjellklumpen deposit, Røyrvik, Trøndelag, NorwayiRegional Level TypesLillefjellklumpen depositDeposit RøyrvikMunicipality TrøndelagCounty NorwayCountry function showexplain() { $("#locexplain").toggle(); if (typeof movemap === "function") movemap(); }

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Mineral List

Rock Types Recorded

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Detailed Mineral List:

Gallery:

List of minerals arranged by Strunz 10th Edition classification

List of minerals for each chemical element

Other Databases

Other Regions, Features and Areas containing this locality

References

Lillefjellklumpen deposit, Røyrvik, Trøndelag, Norway i
Regional Level Types
Lillefjellklumpen deposit Deposit
Røyrvik Municipality
Trøndelag County
Norway Country