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Skjærpemyr Mine (Skjerpemyr Mine), Grua Mining District, Lunner, Oppland, Norway

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Skjærpemyr mine are the most interesting and richest mine in the Grua District.
The area is protected by law and it is not allowed to collect pieces from rock. Hammering and digging is strictly forbidden.



References:
-Goldschmidt, V.M. (1911): Die Kontaktmetamorphose im Kristianiagebiet . Videnskapsselskapets Skrifter. 1.Mat.-Naturv. Klasse 1911. No 1. Kristiania (in german)
- Folvik, H. (2005): Mineralene på Skjerpemyr. STEIN 32 (1), 4-9 (in norwegian)
- Folvik, H. O. (2008): Nytt om mineraler. Tre nye mineraler fra Skjerpemyr, Grua. STEIN 35 (1): 16 [find and analysis of hetaerolite, hydrohetaerolite & hydrotungstite]
-Raade, G.(1995): Secondary Zn and Cu minerals from contact deposits of the Oslo region, Norway. Bergverksmuseet Skrift nr 9, 18-26





Mineral List:
  		•  Albite
    Na[AlSi
     
    3
    		O
     
    8
    		]
    Reference: [Harald Folvik (2005): Mineralene på Skjerpemyr. STEIN 32 (1), 4-9 (in norwegian)]
  		•  Amphibole Group
    var: Uralite
    Reference: [Goldschmidt, V.M. (1911): Die Kontaktmetamorphose im Kristianiagebiet . Videnskapsselskapets Skrifter. 1.Mat.-Naturv. Klasse 1911. No 1. Kristiania p.349-50]
  		•  Andradite
    Ca
     
    3
    		Fe
    3+
    2
    		[SiO
     
    4
    		]
     
    3
    Colour: sulfur yellow; blackgreen
    Reference: [Goldschmidt, V.M. (1911): Die Kontaktmetamorphose im Kristianiagebiet . Videnskapsselskapets Skrifter. 1.Mat.-Naturv. Klasse 1911. No 1. Kristiania p 372-3]
    Site Photo
    Skjærpemyr Mine (Skjerpemyr Mine), Grua Mining District, Lunner, Oppland, Norway
    © Knut Eldjarn
  		•  Anglesite
    PbSO
     
    4
    Reference: [Harald Folvik (2005): Mineralene på Skjerpemyr. STEIN 32 (1), 4-9 (in norwegian)]
  		•  Ankerite
    Ca(Fe
    2+
     
    		 ,Mg,Mn
    2+
     
    		)(CO
     
    3
    		)
     
    2
    Reference: [Harald Folvik (2005): Mineralene på Skjerpemyr. STEIN 32 (1), 4-9 (in norwegian)]
  		•  Aurichalcite
    (Zn,Cu)
     
    5
    		[(OH)
     
    3
    		|CO
     
    3
    		]
     
    2
    Reference: [Raade,G.(1995): "Secondary Zn and Cu minerals from contact deposits of the Oslo region, Norway".Bergverksmuseet Skrift nr 9, 18-26]
  		•  Azurite
    Cu
     
    3
    		[OH|CO
     
    3
    		]
     
    2
    Reference: [Harald Folvik (2005): Mineralene på Skjerpemyr. STEIN 32 (1), 4-9 (in norwegian)]
  		•  Braunite
    Mn
    2+
     
    		Mn
    3+
    6
    		[O
     
    8
    		|SiO
     
    4
    		]
    Reference: [Harald Folvik (2005): Mineralene på Skjerpemyr. STEIN 32 (1), 4-9 (in norwegian)]
  		•  Brochantite
    Cu
     
    4
    		[(OH)
     
    6
    		|SO
     
    4
    		]
    Reference: [Harald Folvik (2005): Mineralene på Skjerpemyr. STEIN 32 (1), 4-9 (in norwegian)]
  		•  Calcite
    CaCO
     
    3
    Reference: [Goldschmidt, V.M. (1911): Die Kontaktmetamorphose im Kristianiagebiet . Videnskapsselskapets Skrifter. 1.Mat.-Naturv. Klasse 1911. No 1. Kristiania , p 287]
  		•  Cerussite
    PbCO
     
    3
    Reference: [Harald Folvik (2005): Mineralene på Skjerpemyr. STEIN 32 (1), 4-9 (in norwegian)]
  		•  Chalcocite
    Cu
     
    2
    		S
    Reference: [Harald Folvik (2005): Mineralene på Skjerpemyr. STEIN 32 (1), 4-9 (in norwegian)]
  		•  Chalcophanite
    (Zn,Fe,Mn)Mn
     
    3
    		O
     
    7
    		·3H
     
    2
    		O
    Reference: [Harald Folvik (2005): Mineralene på Skjerpemyr. STEIN 32 (1), 4-9 (in norwegian)]
  		•  Chalcopyrite
    CuFeS
     
    2
    Reference: [Harald Folvik (2005): Mineralene på Skjerpemyr. STEIN 32 (1), 4-9 (in norwegian)]
  		•  'Chlorite Group'
    Reference: [Harald Folvik (2005): Mineralene på Skjerpemyr. STEIN 32 (1), 4-9 (in norwegian)]
  		•  Coronadite
    Pb(Mn
    4+
     
    		,Mn
    3+
     
    		)
     
    8
    		O
     
    16
    Reference: [Harald Folvik (2005): Mineralene på Skjerpemyr. STEIN 32 (1), 4-9 (in norwegian)]
  		•  Epidote
    {Ca
     
    2
    		}{Al
     
    2
    		Fe
    3+
     
    		}[O|OH|SiO
     
    4
    		|Si
     
    2
    		O
     
    7
    		]
    Reference: [Harald Folvik (2005): Mineralene på Skjerpemyr. STEIN 32 (1), 4-9 (in norwegian)]
  		•  Galena
    PbS
    Reference: [Goldschmidt, V.M. (1911): Die Kontaktmetamorphose im Kristianiagebiet . Videnskapsselskapets Skrifter. 1.Mat.-Naturv. Klasse 1911. No 1. Kristiania , p 246]
  		•  Goethite
    α-Fe
    3+
     
    		O(OH)
    Description: As inclusions in quartz
    Reference: [Goldschmidt, V.M. (1911): Die Kontaktmetamorphose im Kristianiagebiet . Videnskapsselskapets Skrifter. 1.Mat.-Naturv. Klasse 1911. No 1. Kristiania , p 282]
  		•  Greenockite
    CdS
    Reference: []
    Site Photo
    Skjærpemyr Mine (Skjerpemyr Mine), Grua Mining District, Lunner, Oppland, Norway
    © Knut Eldjarn
  		•  Hematite
    Fe
     
    2
    		O
     
    3
    Reference: [Harald Folvik (2005): Mineralene på Skjerpemyr. STEIN 32 (1), 4-9 (in norwegian)]
  		•  Hemimorphite
    Zn
     
    4
    		[(OH)
     
    2
    		|Si
     
    2
    		O
     
    7
    		] · H
     
    2
    		O
    Reference: [Goldschmidt, V.M. (1911): Die Kontaktmetamorphose im Kristianiagebiet . Videnskapsselskapets Skrifter. 1.Mat.-Naturv. Klasse 1911. No 1. Kristiania , p 399-401]
  		•  Hetaerolite
    ZnMn
     
    2
    		O
     
    4
    Description: NHM, Oslo XRD / SEM-EDS
    Reference: [Folvik, H. O. (2008): Nytt om mineraler. Tre nye mineraler fra Skjerpemyr, Grua. STEIN 35 (1): 16]
  		•  Hydrohetaerolite
    ZnMn
     
    2
    		O
     
    4
    		·H
     
    2
    		O
    Description: NHM, Oslo XRD / SEM-EDS
    Reference: [Folvik, H. O. (2008): Nytt om mineraler. Tre nye mineraler fra Skjerpemyr, Grua. STEIN 35 (1): 16]
  		•  Hydrotungstite
    WO
     
    3
    		·2H
     
    2
    		O
    Description: NHM, Oslo XRD / SEM-EDS
    Reference: [Folvik, H. O. (2008): Nytt om mineraler. Tre nye mineraler fra Skjerpemyr, Grua. STEIN 35 (1): 16]
  		•  Hydrozincite
    Zn
     
    5
    		[(OH)
     
    3
    		|CO
     
    3
    		]
     
    2
    Reference: [Raade,G.(1995): "Secondary Zn and Cu minerals from contact deposits of the Oslo region, Norway".Bergverksmuseet Skrift nr 9, 18-26]
  		•  Ilvaite
    CaFe
    2+
    2
    		Fe
    3+
     
    		[O|OH|Si
     
    2
    		O
     
    7
    		]
    Reference: [Goldschmidt, V.M. (1911): Die Kontaktmetamorphose im Kristianiagebiet . Videnskapsselskapets Skrifter. 1.Mat.-Naturv. Klasse 1911. No 1. Kristiania , p 402-403]
    Site Photo
    Skjærpemyr Mine (Skjerpemyr Mine), Grua Mining District, Lunner, Oppland, Norway
    © Knut Eldjarn
  		•  Kentrolite
    Pb
     
    2
    		Mn
    3+
    2
    		[O
     
    2
    		|Si
     
    2
    		O
     
    7
    		]
    Reference: [Harald Folvik (2005): Mineralene på Skjerpemyr. STEIN 32 (1), 4-9 (in norwegian)]
    Site Photo
    Skjærpemyr Mine (Skjerpemyr Mine), Grua Mining District, Lunner, Oppland, Norway
    © Harald Folvik
  		•  Linarite
    PbCu[(OH)
     
    2
    		|SO
     
    4
    		]
    Reference: [Raade,G.(1995): "Secondary Zn and Cu minerals from contact deposits of the Oslo region, Norway".Bergverksmuseet Skrift nr 9, 18-26]
  		•  Magnetite
    Fe
    2+
     
    		Fe
    3+
    2
    		O
     
    4
    Reference: [Harald Folvik (2005): Mineralene på Skjerpemyr. STEIN 32 (1), 4-9 (in norwegian)]
  		•  Malachite
    Cu
     
    2
    		[(OH)
     
    2
    		|CO
     
    3
    		]
    Reference: [Harald Folvik (2005): Mineralene på Skjerpemyr. STEIN 32 (1), 4-9 (in norwegian)]
    Site Photo
    Skjærpemyr Mine (Skjerpemyr Mine), Grua Mining District, Lunner, Oppland, Norway
    © Harald Folvik
  		•  Marcasite
    FeS
     
    2
    Reference: []
  		•  Millerite
    NiS
    Reference: []
  		•  Pyrite
    FeS
     
    2
    Reference: [Harald Folvik (2005): Mineralene på Skjerpemyr. STEIN 32 (1), 4-9 (in norwegian)]
  		•  Quartz
    SiO
     
    2
    Reference: [Harald Folvik (2005): Mineralene på Skjerpemyr. STEIN 32 (1), 4-9 (in norwegian)]
  		•  Rhodochrosite
    MnCO
     
    3
    Reference: [Harald Folvik (2005): Mineralene på Skjerpemyr. STEIN 32 (1), 4-9 (in norwegian)]
  		•  Romanèchite
    (Ba,H
     
    2
    		O)
     
    2
    		Mn
     
    5
    		O
     
    10
    Reference: [Harald Folvik (2005): Mineralene på Skjerpemyr. STEIN 32 (1), 4-9 (in norwegian)]
  		•  Rosasite
    (Cu,Zn)
     
    2
    		[(OH)
     
    2
    		|CO
     
    3
    		]
    Reference: [Harald Folvik (2005): Mineralene på Skjerpemyr. STEIN 32 (1), 4-9 (in norwegian)]
  		•  Scheelite
    Ca[WO
     
    4
    		]
    Reference: [Harald Folvik (2005): Mineralene på Skjerpemyr. STEIN 32 (1), 4-9 (in norwegian); Neumann (1985, p. 113).]
  		•  Siderite
    FeCO
     
    3
    Reference: [Harald Folvik (2005): Mineralene på Skjerpemyr. STEIN 32 (1), 4-9 (in norwegian)]
  		•  Smithsonite
    ZnCO
     
    3
    Reference: [Raade,G.(1995): "Secondary Zn and Cu minerals from contact deposits of the Oslo region, Norway".Bergverksmuseet Skrift nr 9, 18-26]
  		•  Sphalerite
    (Zn,Fe
    2+
     
    		)S
    Colour: black and yellowbrown
    Reference: [Goldschmidt, V.M. (1911): Die Kontaktmetamorphose im Kristianiagebiet . Videnskapsselskapets Skrifter. 1.Mat.-Naturv. Klasse 1911. No 1. Kristiania , p 254]
  		•  Stilpnomelane
    (K,Ca,Na)(Fe
    2+
     
    		,Mg,Al,Fe
    3+
     
    		)
     
    8
    		(Si,Al)
     
    12
    		(O,OH)
     
    36
    		 · nH
     
    2
    		O
    Reference: [Harald Folvik (2005): Mineralene på Skjerpemyr. STEIN 32 (1), 4-9 (in norwegian)]
  		•  Wulfenite
    Pb[MoO
     
    4
    		]
    Reference: [Harald Folvik (2005): Mineralene på Skjerpemyr. STEIN 32 (1), 4-9 (in norwegian)]
    Site Photo
    Skjærpemyr Mine (Skjerpemyr Mine), Grua Mining District, Lunner, Oppland, Norway
    © Harald Folvik


    44 entries listed. 42 valid minerals.

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