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Iwaizawa mine, Hannou, Saitama Prefecture, Kanto Region, Honshu Island, Japan

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Paleozoic chert- and schalstein-hosted manganese ore, weakly metamorphosed. Main ore mineral was caryopilite.





Mineral List:
  		•  Bannisterite
    Ca
     
    0.5
    		(K,Na)
     
    0.5
    		(Mn,Fe,Zn)
     
    10
    		(Si,Al)
     
    16
    		O
     
    38
    		(OH)
     
    8
    		·5.5H
     
    2
    		O
    Reference: []
  		•  Caryopilite
    (Mn,Mg)
     
    3
    		Si
     
    2
    		O
     
    5
    		(OH)
     
    4
    Reference: []
  		•  Quartz
    SiO
     
    2
    Reference: []
  		•  Taneyamalite (TL)
    (Na,Ca)(Mn,Mg,Fe)
     
    12
    		Si
     
    12
    		(O,OH)
     
    44
    Type Locality: Iwaizawa mine, Hannou, Saitama Prefecture, Kanto Region, Honshu Island, Japan
    Reference: [Matsubara, S. (1981) Mineralogical Magazine, 44, 51-53.]


    4 entries listed. 4 valid minerals. 1 type locality (valid mineral).

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