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Otaniyama mine, Shimohei-gun, Iwate Prefecture, Tohoku Region, Honshu Island, Japan

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Manganese deposit





Mineral List:
  		•  Alleghanyite
    Mn
    2+
    5
    		[(OH)
     
    2
    		|(SiO
     
    4
    		)
     
    2
    		]
    Reference: [Dr. Matsuo Nambu ore collection (curated at Geological Survey of Japan)]
  		•  Bannisterite
    Ca
     
    0.5
    		(K,Na)
     
    0.5
    		(Mn,Fe,Zn)
     
    10
    		(Si,Al)
     
    16
    		O
     
    38
    		(OH)
     
    8
    		·5.5H
     
    2
    		O
    Reference: [Dr. Matsuo Nambu ore collection (curated at Geological Survey of Japan)]
  		•  Braunite
    Mn
    2+
     
    		Mn
    3+
    6
    		[O
     
    8
    		|SiO
     
    4
    		]
    Reference: [Dr. Matsuo Nambu ore collection (curated at Geological Survey of Japan)]
  		•  Calcite
    CaCO
     
    3
    Reference: [Dr. Matsuo Nambu collection (curated at Geological Survey of Japan)]
  		•  Galaxite
    (Mn,Fe,Mg)(Al,Fe)
     
    2
    		O
     
    4
    Reference: [Dr. Matsuo Nambu ore collection (curated at Geological Survey of Japan)]
  		•  Ganophyllite
    (K,Na,Ca)
     
    2
    		Mn
     
    8
    		(Si,Al)
     
    12
    		(O,OH)
     
    32
    		·8H
     
    2
    		O
    Reference: [Dr. Matsuo Nambu collection (curated at Geological Survey of Japan)]
  		•  Hausmannite
    MnMn
     
    2
    		O
     
    4
    Reference: [Dr. Matsuo Nambu ore collection (curated at Geological Survey of Japan)]
  		•  Hematite
    Fe
     
    2
    		O
     
    3
    Reference: [Dr. Matsuo Nambu ore collection (curated at Geological Survey of Japan)]
  		•  Jacobsite
    Mn
    2+
     
    		Fe
    3+
    2
    		O
     
    4
    Reference: [Dr. Matsuo Nambu ore collection (curated at Geological Survey of Japan)]
  		•  Kutnohorite
    Ca(Mn,Mg,Fe)(CO
     
    3
    		)
     
    2
    Reference: [Dr. Matsuo Nambu collection (curated at Geological Survey of Japan)]
  		•  Manganosite
    MnO
    Reference: [Dr. Matsuo Nambu ore collection (curated at Geological Survey of Japan)]
  		•  Quartz
    var: Chert
    Reference: [Dr. Matsuo Nambu ore collection (curated at Geological Survey of Japan)]
  		•  Rhodochrosite
    MnCO
     
    3
    Reference: [Dr. Matsuo Nambu ore collection (curated at Geological Survey of Japan)]
  		•  Rhodonite
    MnSiO
     
    3
    Reference: [Dr. Matsuo Nambu ore collection (curated at Geological Survey of Japan)]
  		•  Spessartine
    Mn
    2+
    3
    		Al
     
    2
    		[SiO
     
    4
    		]
     
    3
    Reference: [Dr. Matsuo Nambu ore collection (curated at Geological Survey of Japan)]
  		•  Stilpnomelane
    (K,Ca,Na)(Fe
    2+
     
    		,Mg,Al,Fe
    3+
     
    		)
     
    8
    		(Si,Al)
     
    12
    		(O,OH)
     
    36
    		 · nH
     
    2
    		O
    Reference: [Dr. Matsuo Nambu ore collection (curated at Geological Survey of Japan)]
  		•  Tinzenite
    (Ca,Mn
    2+
     
    		,Fe
    2+
     
    		)
     
    3
    		Al
     
    2
    		[OH|BSi
     
    4
    		O
     
    15
    		]
    Reference: [Dr. Matsuo Nambu collection (curated at Geological Survey of Japan)]
  		•  Winchite
    ☐[CaNa][Mg
     
    4
    		(Al,Fe
    3+
     
    		)][(OH)
     
    2
    		|Si
     
    8
    		O
     
    22
    		]
    Reference: [Dr. Matsuo Nambu ore collection (curated at Geological Survey of Japan)]


    18 entries listed. 17 valid minerals.

    The above list contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database!
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