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Skrikerum Mine, Valdemarsvik, Östergötland, Sweden

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Cu-Ag-Pb-Se deposit. The element selenium was discovered in eucairite from Skrikerum.



References:
- Wilke, H.-J. (1976): Mineral-Fundstellen Band 4: Skandinavien. Chr. Weise Verlag, München, p. 144-145
-Bindi, L. & Pratesi, G. (2005): Selenojalpaite, Ag3CuSe2, a new mineral species from the Skrikerum Cu–Ag–Tl selenide deposit, Smaland, southeastern Sweden, Canadian Mineralogist 43, 1373-1377
- Sandström, F. (2007): Skrikerum. Litiofilen 24 (1), 22-38





Mineral List:
  		•  'Allanite'
    Reference: [No reference listed]
  		•  Altaite
    PbTe
    Habit: Grains up to 0,2 mm
    Description: Together with chalcopyrite, berzelianite, eucairite and selenojalpaite
    Reference: [Sandström, F. (2007): Skrikerum. Litiofilen 24 (1), 22-38]
  		•  Antigorite
    (Mg,Fe
    2+
     
    		)
     
    3
    		[(OH)
     
    4
    		|Si
     
    2
    		O
     
    5
    		]
    Description: occurs in calcite with eucairite
    Reference: [Sandström, F. (2007): Skrikerum. Litiofilen 24 (1), 22-38]
  		•  Athabascaite
    Cu
     
    5
    		Se
     
    4
    Reference: [Sandström, F. (2007): Skrikerum. Litiofilen 24 (1), 22-38]
  		•  Berzelianite (TL)
    Cu
     
    2
    		Se
    Type Locality: Skrikerum Mine, Valdemarsvik, Östergötland, Sweden
    Reference: [MinRec 19:295]; Econ Geol (1997) 92:468-484]
    Site Photo
    Skrikerum Mine, Valdemarsvik, Östergötland, Sweden
    © Bert Hendriksen
  		•  Bornite
    Cu
     
    5
    		FeS
     
    4
    Reference: [Sandström, F. (2007): Skrikerum. Litiofilen 24 (1), 22-38]
  		•  Bukovite
    Tl
     
    2
    		(Cu,Fe)
     
    4
    		Se
     
    4
    Habit: finegrained grains
    Description: So fingrained that it is impossible to identify in a binoculare
    Reference: [Sandström, F. (2007): Skrikerum. Litiofilen 24 (1), 22-38]
    Site Photo
    Skrikerum Mine, Valdemarsvik, Östergötland, Sweden
    © Ł Kruszewski 08
  		•  Calcite
    CaCO
     
    3
    Reference: [Sandström, F. (2007): Skrikerum. Litiofilen 24 (1), 22-38]
  		•  Chalcocite
    Cu
     
    2
    		S
    Reference: [No reference listed]
  		•  Chalcomenite
    Cu[SeO
     
    3
    		] · 2H
     
    2
    		O
    Colour: bluegreen
    Reference: [Sandström, F. (2007): Skrikerum. Litiofilen 24 (1), 22-38]
  		•  Chalcopyrite
    CuFeS
     
    2
    Reference: [Sandström, F. (2007): ]
  		•  Chloritoid
    (Fe
    2+
     
    		,Mg,Mn
    2+
     
    		)Al
     
    2
    		[O|(OH)
     
    2
    		|SiO
     
    4
    		]
    Reference: [Sandström, F. (2007): Skrikerum. Litiofilen 24 (1), 22-38]
  		•  Clausthalite
    PbSe
    Colour: light leadgrey (fresh)
    Description: Occurs often together with klockmannite
    Reference: [Sandström, F. (2007): Skrikerum. Litiofilen 24 (1), 22-38; Econ Geol (1997) 92:468-484]
  		•  Clinochlore
    var: Ripidolite
    (Mg,Fe,Al)
     
    6
    		(Si,Al)
     
    4
    		O
     
    10
    		(OH)
     
    8
    Reference: [No reference listed]
  		•  Copper
    Cu
    Reference: [Sandström, F. (2007): Skrikerum. Litiofilen 24 (1), 22-38]
  		•  Covellite
    CuS
    Reference: [Sandström, F. (2007): Skrikerum. Litiofilen 24 (1), 22-38]
  		•  Crookesite (TL)
    (Cu,Tl,Ag)
     
    2
    		Se
    Type Locality: Skrikerum Mine, Valdemarsvik, Östergötland, Sweden
    Habit: masses up to 5 x 5 x 2 cm
    Description: in calcite, or inbetween the calcite and the hosting rock of the calcite veins
    Reference: [Am Min 35 (1950), 337; Sandström, F. (2007): Skrikerum. Litiofilen 24 (1), 22-38; Econ Geol (1997) 92:468-484]
    Site Photo
    Skrikerum Mine, Valdemarsvik, Östergötland, Sweden
    © 2005 M. Kampf
  		•  Cuprite
    Cu
     
    2
    		O
    Reference: [Sandström, F. (2007): Skrikerum. Litiofilen 24 (1), 22-38]
  		•  Eucairite (TL)
    AgCuSe
    Type Locality: Skrikerum Mine, Valdemarsvik, Östergötland, Sweden
    Colour: silverwhite to leadgrey
    Reference: [Zeitschrift für Kristallographie, volume 108, pp. 389(1957); Clark, 1993 - "Hey's Mineral Index"]; Sandström, F. (2007): Skrikerum. Litiofilen 24 (1), 22-38]
    Site Photo
    Skrikerum Mine, Valdemarsvik, Östergötland, Sweden
    © B. Otter
  		•  Ferroselite
    FeSe
     
    2
    Reference: [Sandström, F. (2007): Skrikerum. Litiofilen 24 (1), 22-38]
  		•  Fischesserite
    Ag
     
    3
    		AuSe
     
    2
    Reference: [Sandström, F. (2007): Skrikerum. Litiofilen 24 (1), 22-38]
  		•  Galena
    PbS
    Reference: [Sandström, F. (2007): Skrikerum. Litiofilen 24 (1), 22-38]
  		•  'Gillingite'
    Reference: [No reference listed]
  		•  Gold
    var: Electrum
    (Au, Ag)
    Reference: [Sandström, F. (2007): Skrikerum. Litiofilen 24 (1), 22-38]
  		•  Gypsum
    Ca[SO
     
    4
    		] · 2H
     
    2
    		O
    Reference: [Sandström, F. (2007): Skrikerum. Litiofilen 24 (1), 22-38]
  		•  Hematite
    Fe
     
    2
    		O
     
    3
    Reference: [Econ Geol (1997) 92:468-484]
  		•  Hisingerite
    Fe
    3+
    2
    		Si
     
    2
    		O
     
    5
    		(OH)
     
    4
    		·2H
     
    2
    		O
    Reference: [Sandström, F. (2007): Skrikerum. Litiofilen 24 (1), 22-38]
  		•  'Hornblende'
    Reference: [Sandström, F. (2007): Skrikerum. Litiofilen 24 (1), 22-38]
  		•  Klockmannite
    CuSe
    Reference: [Sandström, F. (2007): Skrikerum. Litiofilen 24 (1), 22-38; Econ Geol (1997) 92:468-484]
  		•  Magnetite
    Fe
    2+
     
    		Fe
    3+
    2
    		O
     
    4
    Reference: [Sandström, F. (2007): Skrikerum. Litiofilen 24 (1), 22-38]
  		•  Malachite
    Cu
     
    2
    		[(OH)
     
    2
    		|CO
     
    3
    		]
    Reference: [Sandström, F. (2007): Skrikerum. Litiofilen 24 (1), 22-38]
  		•  Muscovite
    KAl
     
    2
    		[(OH)
     
    2
    		|AlSi
     
    3
    		O
     
    10
    		]
    Reference: [Sandström, F. (2007): Skrikerum. Litiofilen 24 (1), 22-38]
  		•  Naumannite
    Ag
     
    2
    		Se
    Reference: [Sandström, F. (2007): Skrikerum. Litiofilen 24 (1), 22-38]
  		•  Pyrite
    FeS
     
    2
    Reference: [Sandström, F. (2007): Skrikerum. Litiofilen 24 (1), 22-38]
  		•  Quartz
    SiO
     
    2
    Reference: [Sandström, F. (2007): Skrikerum. Litiofilen 24 (1), 22-38]
  		•  Selenojalpaite (TL)
    Ag
     
    3
    		CuSe
     
    2
    Type Locality: Skrikerum Mine, Valdemarsvik, Östergötland, Sweden
    Reference: [L. Bindi & G. Pratesi (2005); Sandström, F. (2007): Skrikerum. Litiofilen 24 (1), 22-38]
  		•  Silver
    Ag
    Reference: [Sandström, F. (2007): Skrikerum. Litiofilen 24 (1), 22-38]
  		•  Sphalerite
    (Zn,Fe
    2+
     
    		)S
    Reference: [Sandström, F. (2007): Skrikerum. Litiofilen 24 (1), 22-38]
  		•  Stromeyerite
    AgCuS
    Reference: [Sandström, F. (2007): Skrikerum. Litiofilen 24 (1), 22-38]
  		•  Umangite
    Cu
     
    3
    		Se
     
    2
    Reference: [Sandström, F. (2007): Skrikerum. Litiofilen 24 (1), 22-38; Econ Geol (1997) 92:468-484]
  		•  Uraninite
    var: Pitchblende
    UO
     
    2
    Reference: [Sandström, F. (2007): Skrikerum. Litiofilen 24 (1), 22-38]
  		•  Uranophane
    Ca(UO
     
    2
    		)
     
    2
    		[HSiO
     
    4
    		]
     
    2
    		 · 5H
     
    2
    		O
    Reference: [Sandström, F. (2007): Skrikerum. Litiofilen 24 (1), 22-38]


    42 entries listed. 36 valid minerals. 4 type localities (valid minerals).

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