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Gozaisho mine, Iwaki, Fukushima Prefecture, Tohoku Region, Honshu Island, Japan

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Metamorphosed sedimentary (bedded) manganese ore. Rhodonite was the main ore mineral, with lesser amounts of braunite and tephroite.



References:
Matsubara, S., Miyawaki, R., Kato, A., Matsuyama, F., Mouri, T. and Suzuki, Y. (2001): Arseniopleite from the Gozaisho mine, Fukushima Prefecture, Japan. Bull. Natn. Sci. Mus., Tokyo, Ser. C, 27, 51-62.
Satoshi Matsubara et al (1996) Romeite from the Gozaisho mine, Iwaki, Japan. Mineralogical Journal Vol. 18 (1996) , No. 4 pp 155-160





 Map Reference: 36°59'45"N , 140°42'25"E

This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.



Mineral List:
  		•  Aegirine
    NaFe
    3+
     
    		[Si
     
    2
    		O
     
    6
    		]
    Reference: [Matsubara, S., Miyawaki, R., Kato, A., Matsuyama, F., Mouri, T. and Suzuki, Y. (2001): Arseniopleite from the Gozaisho mine, Fukushima Prefecture, Japan. Bull. Natn. Sci. Mus., Tokyo, Ser. C, 27, 51-62. ; Mineralogical Journal Vol. 18 (1996) , No. 4 pp 155-160]
  		•  Albite
    Na[AlSi
     
    3
    		O
     
    8
    		]
    Reference: [Matsubara, S., Miyawaki, R., Kato, A., Matsuyama, F., Mouri, T. and Suzuki, Y. (2001): Arseniopleite from the Gozaisho mine, Fukushima Prefecture, Japan. Bull. Natn. Sci. Mus., Tokyo, Ser. C, 27, 51-62. ; Mineralogical Journal Vol. 18 (1996) , No. 4 pp 155-160]
  		•  Alleghanyite
    Mn
    2+
    5
    		[(OH)
     
    2
    		|(SiO
     
    4
    		)
     
    2
    		]
    Reference: [Mineralogical Journal Vol. 18 (1996) , No. 4 pp 155-160]
  		•  Arseniopleite
    NaCaMn
    2+
     
    		(Mn
    2+
     
    		,Mg)
     
    2
    		(AsO
     
    4
    		)
     
    3
    Reference: [Matsubara, S., Miyawaki, R., Kato, A., Matsuyama, F., Mouri, T. and Suzuki, Y. (2001): Arseniopleite from the Gozaisho mine, Fukushima Prefecture, Japan. Bull. Natn. Sci. Mus., Tokyo, Ser. C, 27, 51-62; The Mineral Species of Japan (5th ed) Matsubara]
  		•  Baryte
    BaSO
     
    4
    Reference: [Matsubara, S., Miyawaki, R., Kato, A., Matsuyama, F., Mouri, T. and Suzuki, Y. (2001): Arseniopleite from the Gozaisho mine, Fukushima Prefecture, Japan. Bull. Natn. Sci. Mus., Tokyo, Ser. C, 27, 51-62. ; Mineralogical Journal Vol. 18 (1996) , No. 4 pp 155-160]
  		•  Bornite
    Cu
     
    5
    		FeS
     
    4
    Reference: [Mineralogical Journal Vol. 18 (1996) , No. 4 pp 155-160]
  		•  Brandtite
    Ca
     
    2
    		(Mn
    2+
     
    		,Mg)[AsO
     
    4
    		]
     
    2
    		 · 2H
     
    2
    		O
    Reference: [Matsubara, S. (2000); R. Marumoto collection; Matsubara, S., Miyawaki, R., Kato, A., Matsuyama, F., Mouri, T. and Suzuki, Y. (2001): Arseniopleite from the Gozaisho mine, Fukushima Prefecture, Japan. Bull. Natn. Sci. Mus., Tokyo, Ser. C, 27, 51-62. ]
  		•  Braunite
    Mn
    2+
     
    		Mn
    3+
    6
    		[O
     
    8
    		|SiO
     
    4
    		]
    Reference: [Mineralogical Journal Vol. 18 (1996) , No. 4 pp 155-160]
  		•  Brochantite
    Cu
     
    4
    		[(OH)
     
    6
    		|SO
     
    4
    		]
    Reference: [Mineralogical Journal Vol. 18 (1996) , No. 4 pp 155-160]
  		•  Calcite
    CaCO
     
    3
    Reference: [Mineralogical Journal Vol. 18 (1996) , No. 4 pp 155-160]
  		•  Chalcopyrite
    CuFeS
     
    2
    Reference: [Mineralogical Journal Vol. 18 (1996) , No. 4 pp 155-160]
  		•  Conichalcite
    CaCu[OH|AsO
     
    4
    		]
    Reference: [Mineralogical Journal Vol. 18 (1996) , No. 4 pp 155-160; Sakai, S., Yoshiasa, A., Sugiyama and Miyawaki, R. (2009): Crystal structure and chemistry of conichalcite, CaCu(AsO4)(OH). Journal of Mineralogical and Petrological Sciences, 104, 125-131. ]
  		•  Copper
    Cu
    Reference: [Mineralogical Journal Vol. 18 (1996) , No. 4 pp 155-160]
  		•  Crednerite
    CuMnO
     
    2
    Reference: [Matsubara, S., Miyawaki, R., Kato, A., Matsuyama, F., Mouri, T. and Suzuki, Y. (2001): Arseniopleite from the Gozaisho mine, Fukushima Prefecture, Japan. Bull. Natn. Sci. Mus., Tokyo, Ser. C, 27, 51-62. ; Mineralogical Journal Vol. 18 (1996) , No. 4 pp 155-160]
  		•  Cryptomelane
    K(Mn
    4+
     
    		,Mn
    2+
     
    		)
     
    8
    		O
     
    16
    Reference: [Mineralogical Journal Vol. 18 (1996) , No. 4 pp 155-160]
  		•  Cuprite
    Cu
     
    2
    		O
    Reference: [Mineralogical Journal Vol. 18 (1996) , No. 4 pp 155-160]
  		•  Digenite
    Cu
     
    9
    		S
     
    5
    Reference: [Mineralogical Journal Vol. 18 (1996) , No. 4 pp 155-160]
  		•  Djurleite
    Cu
     
    31
    		S
     
    16
    Reference: [Mineralogical Journal Vol. 18 (1996) , No. 4 pp 155-160]
  		•  Galena
    PbS
    Reference: [Mineralogical Journal Vol. 18 (1996) , No. 4 pp 155-160]
  		•  Ganophyllite
    (K,Na,Ca)
     
    2
    		Mn
     
    8
    		(Si,Al)
     
    12
    		(O,OH)
     
    32
    		·8H
     
    2
    		O
    Reference: [Mineralogical Journal Vol. 18 (1996) , No. 4 pp 155-160]
  		•  Geigerite
    Mn
     
    5
    		[HAsO
     
    4
    		|AsO
     
    4
    		]
     
    2
    		 · 10H
     
    2
    		O
    Reference: [Kato et al (1990) Ganseki-Koubutsu-Koshogaku Zasshi, 85, 184.; Mineralogical Journal Vol. 18 (1996) , No. 4 pp 155-160]
  		•  Hausmannite
    MnMn
     
    2
    		O
     
    4
    Reference: [Mineralogical Journal Vol. 18 (1996) , No. 4 pp 155-160]
  		•  Helvite
    Mn
    2+
    4
    		Be
     
    3
    		[S|(SiO
     
    4
    		)
     
    3
    		]
    Reference: [Mineralogical Journal Vol. 18 (1996) , No. 4 pp 155-160]
  		•  Hematite
    Fe
     
    2
    		O
     
    3
    Reference: [S. Matsubara, A. Kato, K. Nagashima: Japan. Mineral. J. 9:383-391 (1979); Amer. Mineral. 65:406 (1980); Mineralogical Journal Vol. 18 (1996) , No. 4 pp 155-160]
  		•  Iwakiite (TL)
    Mn(Fe,Mn)
     
    2
    		O
     
    4
    Type Locality: Gozaisho mine, Iwaki, Fukushima Prefecture, Tohoku Region, Honshu Island, Japan
    Reference: [S. Matsubara, A. Kato, K. Nagashima: Japan. Mineral. J. 9:383-391 (1979); Amer. Mineral. 65:406 (1980); Matsubara, S., Miyawaki, R., Kato, A., Matsuyama, F., Mouri, T. and Suzuki, Y. (2001): Arseniopleite from the Gozaisho mine, Fukushima Prefecture, Japan. Bull. Natn. Sci. Mus., Tokyo, Ser. C, 27, 51-62. ; Mineralogical Journal Vol. 18 (1996) , No. 4 pp 155-160]
  		•  Jacobsite
    Mn
    2+
     
    		Fe
    3+
    2
    		O
     
    4
    Reference: [Mineralogical Journal Vol. 18 (1996) , No. 4 pp 155-160]
  		•  Långbanite
    (Mn
    2+
     
    		,Ca)
     
    4
    		(Mn
    3+
     
    		,Fe
    3+
     
    		)
     
    9
    		Sb
    5+
     
    		[O
     
    8
    		|SiO
     
    4
    		]
     
    2
    Reference: [Matsubara, S. et al (1986) Koubutsu-Gakkai Kou'en-Youshi (Abstracts of the Meeting of the Mineralogical Society of Japan), 39.; Mineralogical Journal Vol. 18 (1996) , No. 4 pp 155-160]
    Site Photo
    Gozaisho mine, Iwaki, Fukushima Prefecture, Tohoku Region, Honshu Island, Japan
    © 2008, JGW
  		•  Malachite
    Cu
     
    2
    		[(OH)
     
    2
    		|CO
     
    3
    		]
    Reference: [Mineralogical Journal Vol. 18 (1996) , No. 4 pp 155-160]
  		•  Manganberzeliite
    (Ca,Na)
     
    3
    		(Mn
    2+
     
    		,Mg)
     
    2
    		[AsO
     
    4
    		]
     
    3
    Reference: [Matsubara, S. (1975): Manganberzeliite from Gozaisho mine, Fukushima Prefecture, Japan. Kobutsugaku Zasshi 12, 238-52. (in Japanese); Matsubara, S., Miyawaki, R., Kato, A., Matsuyama, F., Mouri, T. and Suzuki, Y. (2001): Arseniopleite from the Gozaisho mine, Fukushima Prefecture, Japan. Bull. Natn. Sci. Mus., Tokyo, Ser. C, 27, 51-62. ; Mineralogical Journal Vol. 18 (1996) , No. 4 pp 155-160]
  		•  Manganosite
    MnO
    Reference: [Mineralogical Journal Vol. 18 (1996) , No. 4 pp 155-160]
  		•  Microcline
    K[AlSi
     
    3
    		O
     
    8
    		]
    Reference: [Mineralogical Journal Vol. 18 (1996) , No. 4 pp 155-160]
  		•  Miguelromeroite
    Mn
     
    5
    		(AsO
     
    3
    		OH)
     
    2
    		(AsO
     
    4
    		)
     
    2
    		·4H
     
    2
    		O
    Description: (Previously thought to be villyaellenite.)
    Reference: [Anthony Kampf, pers. comm., 2009.]
  		•  Molybdenite
    MoS
     
    2
    Reference: [Mineralogical Journal Vol. 18 (1996) , No. 4 pp 155-160]
  		•  Nambulite
    (Li,Na)Mn
     
    4
    		Si
     
    5
    		O
     
    14
    		(OH)
    Reference: [Peacor, D. R., Dunn, P. J., White, J. S., Jr., Grice, J. D. & Chi, P. (1990): Lithiomarsturite, a new member of the pyroxenoid group, from North Carolina. American Mineralogist 75, 409-414. (occurrence as Gozaisho mine with ref. "(Ohashi, pers. comm.)"); Mineralogical Journal Vol. 18 (1996) , No. 4 pp 155-160]
    Site Photo
    Gozaisho mine, Iwaki, Fukushima Prefecture, Tohoku Region, Honshu Island, Japan
    © Maurice de Graaf
  		•  Neotocite
    (Mn,Fe,Mg)SiO
     
    3
    		·H
     
    2
    		O
    Reference: [Mineralogical Journal Vol. 18 (1996) , No. 4 pp 155-160]
  		•  Parabrandtite ?
    Ca
     
    2
    		Mn
    2+
     
    		[AsO
     
    4
    		]
     
    2
    		 · 2H
     
    2
    		O
    Reference: [Alfredo Petrov collection (named parabrandtite on original japanese label, but no analytical data presented)]
  		•  Parvowinchite
    ☐[Mn
    2+
     
    		Na][Mg
     
    4
    		(Al,Fe
    3+
     
    		)][(OH)
     
    2
    		|Si
     
    8
    		O
     
    22
    		]
    Reference: [Mineralogical Journal Vol. 18 (1996) , No. 4 pp 155-160]
  		•  Phlogopite
    KMg
     
    3
    		[(OH,F)
     
    2
    		|AlSi
     
    3
    		O
     
    10
    		]
    Reference: [Mineralogical Journal Vol. 18 (1996) , No. 4 pp 155-160]
  		•  Pyrite
    FeS
     
    2
    Reference: [Mineralogical Journal Vol. 18 (1996) , No. 4 pp 155-160]
  		•  Pyrolusite
    MnO
     
    2
    Reference: [Mineralogical Journal Vol. 18 (1996) , No. 4 pp 155-160]
  		•  Quartz
    SiO
     
    2
    Reference: [S. Matsubara, A. Kato, K. Nagashima: Japan. Mineral. J. 9:383-391 (1979); Amer. Mineral. 65:406 (1980); Mineralogical Journal Vol. 18 (1996) , No. 4 pp 155-160]
  		•  Rhodochrosite
    MnCO
     
    3
    Reference: [S. Matsubara, A. Kato, K. Nagashima: Japan. Mineral. J. 9:383-391 (1979); Amer. Mineral. 65:406 (1980); Mineralogical Journal Vol. 18 (1996) , No. 4 pp 155-160]
  		•  Rhodonite
    MnSiO
     
    3
    Reference: [Mineralogical Journal Vol. 18 (1996) , No. 4 pp 155-160]
  		•  Roméite
    (Ca,Fe,Mn,Na)
     
    2
    		(Sb,Ti)
     
    2
    		O
     
    6
    		(O,OH,F)
    Reference: [Matsubara, S., Miyawaki, R., Kato, A., Matsuyama, F., Mouri, T. and Suzuki, Y. (2001): Arseniopleite from the Gozaisho mine, Fukushima Prefecture, Japan. Bull. Natn. Sci. Mus., Tokyo, Ser. C, 27, 51-62. ; Mineralogical Journal Vol. 18 (1996) , No. 4 pp 155-160]
  		•  Sarkinite
    Mn
    2+
    2
    		[OH|AsO
     
    4
    		]
    Reference: [Matsubara, S., Miyawaki, R., Kato, A., Matsuyama, F., Mouri, T. and Suzuki, Y. (2001): Arseniopleite from the Gozaisho mine, Fukushima Prefecture, Japan. Bull. Natn. Sci. Mus., Tokyo, Ser. C, 27, 51-62. ; Mineralogical Journal Vol. 18 (1996) , No. 4 pp 155-160]
  		•  Sonolite
    Mn
    2+
    9
    		[(OH,F)
     
    2
    		|(SiO
     
    4
    		)
     
    4
    		]
    Reference: [Mineralogical Journal Vol. 18 (1996) , No. 4 pp 155-160]
  		•  Spessartine
    Mn
    2+
    3
    		Al
     
    2
    		[SiO
     
    4
    		]
     
    3
    Reference: [S. Matsubara, A. Kato, K. Nagashima: Japan. Mineral. J. 9:383-391 (1979); Amer. Mineral. 65:406 (1980); Mineralogical Journal Vol. 18 (1996) , No. 4 pp 155-160]
  		•  Sterlinghillite
    Mn
     
    3
    		(AsO
     
    4
    		)
     
    2
    		·4H
     
    2
    		O
    Reference: [ Ryuji Marumoto collection; Matsubara, S., Miyawaki, R., Kato, A., Matsuyama, F., Mouri, T. and Suzuki, Y. (2001): Arseniopleite from the Gozaisho mine, Fukushima Prefecture, Japan. Bulletin of the National Science Museum, Tokyo, Ser. C, 27, 51-62. ]
  		•  Tephroite
    Mn
    2+
    2
    		[SiO
     
    4
    		]
    Reference: [Mineralogical Journal Vol. 18 (1996) , No. 4 pp 155-160]
  		•  Villyaellenite
    (Mn,Ca,Zn)
     
    5
    		(AsO
     
    3
    		OH)
     
    2
    		(AsO
     
    4
    		)
     
    2
    		·4H
     
    2
    		O
    Reference: [Matsubara et al (1996) Mineralogical Journal, 18, #4, 155-160.]
  		•  Wallkilldellite-(Mn)
    Ca
     
    2
    		Mn
    2+
    3
    		[(OH)
     
    2
    		|AsO
     
    4
    		]
     
    2
    		 · 9H
     
    2
    		O
    Reference: [Matsubara, S. et al (2001) Bulletin of the National Science Museum (Tokyo), 27, 45-50.]
  		•  Yarrowite
    Cu
     
    9
    		S
     
    8
    Reference: [Matsubara et al (2002) Journal of Mineralogical and Petrological Sciences, 97, 177-184.]


    52 entries listed. 51 valid minerals. 1 type locality (valid mineral). 1 erroneous literature entry.

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