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Uwamuki deposit (Uwamukai deposit), Kosaka mine, Kosaka, Akita Prefecture, Tohoku Region, Honshu Island, Japan

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Kuroko-type massive sulphide deposit, consisting of several orebodies spread over about 500 meters linear distance. These are, from north to south, the Uwamuki No. 3 deposit, Uwamuki No. 2 deposit, Uwamuki No. 1 deposit and Uwamuki No. 4 deposit.



References:
- Shikazono, N., Hoshino, M., Utada, M., Nakata, M., and Ueda, A. (1998): Hydrothermal carbonates in altered wall rocks at the Uwamuki Kuroko deposits, Japan. Mineralium Deposita 33, 346-358.





Mineral List:
  		•  Albite
    Na[AlSi
     
    3
    		O
     
    8
    		]
    Reference: [Almeda, R.L. et al (1985) Journal of the Mining College, Akita University, Ser. A, Mining Geology, 6, #4, 293-321.]
  		•  Baryte
    BaSO
     
    4
    Reference: [Dr. Matsuo Nambu ore collection (curated at Geological Survey of Japan)]
  		•  Calcite
    CaCO
     
    3
    Reference: [Almeda, R.L. et al (1985) Journal of the Mining College, Akita University, Ser. A, Mining Geology, 6, #4, 293-321.]
  		•  Chalcopyrite
    CuFeS
     
    2
    Reference: [Almeda, R.L. et al (1985) Journal of the Mining College, Akita University, Ser. A, Mining Geology, 6, #4, 293-321.]
  		•  'Chlorite Group'
    Reference: [Almeda, R.L. et al (1985) Journal of the Mining College, Akita University, Ser. A, Mining Geology, 6, #4, 293-321.]
  		•  Dolomite
    CaMg(CO
     
    3
    		)
     
    2
    Reference: [Shikazono, N., Hoshino, M., Utada, M., Nakata, M., and Ueda, A. (1998): Mineralium Deposita 33, 346-358.]
  		•  Galena
    PbS
    Reference: [Dr. Matsuo Nambu ore collection (curated at Geological Survey of Japan)]
  		•  Gypsum
    Ca[SO
     
    4
    		] · 2H
     
    2
    		O
    Reference: [Almeda, R.L. et al (1985) Journal of the Mining College, Akita University, Ser. A, Mining Geology, 6, #4, 293-321.]
  		•  Gypsum
    var: Alabaster
    Reference: [Almeda, R.L. et al (1985) Journal of the Mining College, Akita University, Ser. A, Mining Geology, 6, #4, 293-321.]
  		•  Kaolinite
    Al
     
    2
    		Si
     
    2
    		O
     
    5
    		(OH)
     
    4
    Reference: [Shikazono, N., Hoshino, M., Utada, M., Nakata, M., and Ueda, A. (1998): Mineralium Deposita 33, 346-358.]
  		•  'K Feldspar'
    Reference: [Almeda, R.L. et al (1985) Journal of the Mining College, Akita University, Ser. A, Mining Geology, 6, #4, 293-321.]
  		•  Magnesite
    MgCO
     
    3
    Reference: [Shikazono, N., Hoshino, M., Utada, M., Nakata, M., and Ueda, A. (1998): Mineralium Deposita 33, 346-358.]
  		•  Montmorillonite
    (Na,Ca)
     
    0.33
    		(Al,Mg)
     
    2
    		Si
     
    4
    		O
     
    10
    		(OH)
     
    2
    		·nH
     
    2
    		O
    Reference: [Almeda, R.L. et al (1985) Journal of the Mining College, Akita University, Ser. A, Mining Geology, 6, #4, 293-321.]
  		•  Pyrite
    FeS
     
    2
    Reference: [Almeda, R.L. et al (1985) Journal of the Mining College, Akita University, Ser. A, Mining Geology, 6, #4, 293-321.]
  		•  Quartz
    SiO
     
    2
    Reference: [Almeda, R.L. et al (1985) Journal of the Mining College, Akita University, Ser. A, Mining Geology, 6, #4, 293-321.]
  		•  'Sericite'
    Reference: [Almeda, R.L. et al (1985) Journal of the Mining College, Akita University, Ser. A, Mining Geology, 6, #4, 293-321.]
  		•  Siderite
    FeCO
     
    3
    Reference: [Shikazono, N., Hoshino, M., Utada, M., Nakata, M., and Ueda, A. (1998): Mineralium Deposita 33, 346-358.]
  		•  'Smectite Group'
    A
     
    0.3
    		D
     
    2-3
    		[T
     
    4
    		O
     
    10
    		]Z
     
    2
    		·nH
     
    2
    		O
    Reference: [Shikazono, N., Hoshino, M., Utada, M., Nakata, M., and Ueda, A. (1998): Mineralium Deposita 33, 346-358.]
  		•  Sphalerite
    (Zn,Fe
    2+
     
    		)S
    Reference: [Dr. Matsuo Nambu ore collection (curated at Geological Survey of Japan)]
  		•  Tennantite
    (Cu,Ag,Fe,Zn)
     
    12
    		As
     
    4
    		S
     
    13
    Reference: [Almeda, R.L. et al (1985) Journal of the Mining College, Akita University, Ser. A, Mining Geology, 6, #4, 293-321.]
  		•  Tetrahedrite
    (Cu,Fe,Ag,Zn)
     
    12
    		Sb
     
    4
    		S
     
    13
    Reference: [Almeda, R.L. et al (1985) Journal of the Mining College, Akita University, Ser. A, Mining Geology, 6, #4, 293-321.]


    21 entries listed. 16 valid minerals.

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