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Manjiroite

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About ManjiroiteHide

Formula:
Na(Mn4+7Mn3+)O16
May contain K replacing Na.
Colour:
Dark brownish-gray
Lustre:
Resinous, Dull
Hardness:
3 - 3½
Specific Gravity:
4.29
Crystal System:
Tetragonal
Name:
Named in 1967 by Matsuo Nambu and Katsutoshi Tanida in honor of Dr. Manjiro Watanabe (2 July 1891 Japan - 20 March 1980 Japan), mineralogist, economic geologist and Professor at Tohoku University, Japan.


Many manganese oxides are better identified using infra-red spectroscopy than by x-ray diffraction because of issues of crystal size, disorder, etc. (Potter and Rossman, 1979).


Classification of ManjiroiteHide

Approved
First Published:
1967
4.DK.05a

4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
D : Metal: Oxygen = 1:2 and similar
K : With large (+- medium-sized) cations; tunnel structures
7.9.1.3

7 : MULTIPLE OXIDES
9 : AB8X16
7.2.3

7 : Oxides and Hydroxides
2 : Oxides of the alkali metals

Physical Properties of ManjiroiteHide

Resinous, Dull
Transparency:
Opaque
Colour:
Dark brownish-gray
Streak:
Brownish black
Hardness:
3 - 3½ on Mohs scale
Hardness:
VHN100=181 kg/mm2 - Vickers
Tenacity:
Brittle
Cleavage:
None Observed
Probably has a good cleavage similar to other minerals in its group.
Fracture:
Conchoidal, Sub-Conchoidal
Density:
4.29 g/cm3 (Measured)    4.23 g/cm3 (Calculated)

Optical Data of ManjiroiteHide

Type:
Uniaxial

Chemical Properties of ManjiroiteHide

Formula:
Na(Mn4+7Mn3+)O16

May contain K replacing Na.

Crystallography of ManjiroiteHide

Crystal System:
Tetragonal
Class (H-M):
4/m - Dipyramidal
Space Group:
I4/m
Setting:
I4/m
Cell Parameters:
a = 9.916 Å, c = 2.864 Å
Ratio:
a:c = 1 : 0.289
Unit Cell V:
281.61 ų (Calculated from Unit Cell)
Z:
1
Morphology:
Frequently botryoidal, sometimes fibrous

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
7.017 (98)
4.941 (77)
3.493 (30)
3.136 (92)
2.406 (100)
2.332 (35)
2.217 (20)
2.160 (69)
1.839 (46)
1.548 (46)
1.642 (30)
1.548 (45)
1.431 (35)
Comments:
ICDD 21-1153

Type Occurrence of ManjiroiteHide

General Appearance of Type Material:
Fine-grained black masses, may break with a conchoidal fracture.
Geological Setting of Type Material:
Bedded manganese oxide deposit.
Associated Minerals at Type Locality:
Reference:
Nambu, M., Tanida, K. (1967) Manjirōite, a new manganese dioxide mineral, from Kohare Mine, Iwate Prefecture, Japan. Journal of the Japanese Association of Mineralogists, Petrologists and Economic Geologists: 58: 39-54.

Synonyms of ManjiroiteHide

Other Language Names for ManjiroiteHide

German:Manjiroit
Japanese:万次郎鉱
Spanish:Manjiroita

Relationship of Manjiroite to other SpeciesHide

Other Members of this group:
CoronaditePb(Mn4+6Mn3+2)O16Mon. 2/m
CryptomelaneK(Mn4+7Mn3+)O16Mon. 2/m
FerricoronaditePb(Mn4+6Fe3+2)O16Tet. 4/m : I4/m
FerrihollanditeBa(Mn4+6Fe3+2)O16Mon. 2/m
HollanditeBa(Mn4+6Mn3+2)O16Mon. 2/m
StrontiomelaneSr(Mn4+6Mn3+2)O16Mon. 2/m : P21/b

Common AssociatesHide

Romanèchite(Ba,H2O)2(Mn4+,Mn3+)5O10
Todorokite(Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O
Associated Minerals Based on Photo Data:
Calcite2 photos of Manjiroite associated with Calcite on mindat.org.
Todorokite2 photos of Manjiroite associated with Todorokite on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

4.DK.FerrihollanditeBa(Mn4+6Fe3+2)O16Mon. 2/m
4.DK.05Akaganeite(Fe3+,Ni2+)8(OH,O)16Cl1.25 · nH2OMon. 2/m
4.DK.05aCoronaditePb(Mn4+6Mn3+2)O16Mon. 2/m
4.DK.05aCryptomelaneK(Mn4+7Mn3+)O16Mon. 2/m
4.DK.05aHollanditeBa(Mn4+6Mn3+2)O16Mon. 2/m
4.DK.05bMannarditeBa(Ti4+6V3+2)O16Tet. 4/m : I41/a
4.DK.05bPrideriteK(Ti4+7Fe3+)O16Tet.
4.DK.05bRedledgeiteBa(Ti4+6Cr3+2)O16Tet.
4.DK.05bHenrymeyeriteBa(Ti4+7Fe2+)O16Tet. 4/m : I4/m
4.DK.05aStrontiomelaneSr(Mn4+6Mn3+2)O16Mon. 2/m : P21/b
4.DK.10Romanèchite(Ba,H2O)2(Mn4+,Mn3+)5O10Mon. 2/m
4.DK.10Todorokite(Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2OMon. 2/m : P2/m

Related Minerals - Dana Grouping (8th Ed.)Hide

7.9.1.1HollanditeBa(Mn4+6Mn3+2)O16Mon. 2/m
7.9.1.2CryptomelaneK(Mn4+7Mn3+)O16Mon. 2/m
7.9.1.4CoronaditePb(Mn4+6Mn3+2)O16Mon. 2/m

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

7.2.1Lithiophorite(Al,Li)MnO2(OH)2Trig. 3m (3 2/m) : R3m
7.2.2DiaoyudaoiteNaAl11O17Hex.
7.2.4CryptomelaneK(Mn4+7Mn3+)O16Mon. 2/m

Fluorescence of ManjiroiteHide

Not fluorescent in UV

Other InformationHide

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for ManjiroiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Nambu, M., Tanida, K. (1967) Manjirōite, a new manganese dioxide mineral, from Kohare Mine, Iwate Prefecture, Japan. Journal of the Japanese Association of Mineralogists, Petrologists and Economic Geologists: 58: 39-54.
Fleischer, Michael (1968) Manjiroite. New mineral names. American Mineralogist: 53: 2103-2106.
Potter, Russell M. and Rossman, George R. (1979) The tetravalent manganese oxides: identification, hydration, and structural relationships by infrared spectroscopy. American Mineralogist: 64: 1199-1218.
Mineralogical Society of Japan (1980): 14: 72.
Biagioni, C., Capalbo, C., Pasero, M. (2013) Nomenclature tunings in the hollandite supergroup. European Journal of Mineralogy: 25: 85-90.

Internet Links for ManjiroiteHide

Localities for ManjiroiteHide

ⓘ - Click for further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
Canada
 
  • Nova Scotia
    • Lunenburg Co.
      • New Ross
O'Reilly, G.A. (1992) Petrographic and geochemical Evidence for a Hypogene Origin of Granite-Hosted, Vein-Type Mn Mineralization at the New Ross Mn Deposits, Lunenburg County, Nova Scotia, Canada. Economic Geology: 87: 1275-1300.
Chile
 
  • Antofagasta Region
    • Antofagasta Province
      • La Negra-Coquimbana district
Pincheira, M., & Fontboté, L. (1990). La Negra-Coquimbana Manganiferous District, Southern Atacama Desert, Chile. In Stratabound Ore Deposits in the Andes (pp. 365-378). Springer, Berlin, Heidelberg.
  • Atacama Region
    • Copiapó Province
      • Tierra Amarilla
        • Pampa Larga district
sample analysed by Anatoly Kasatkin, Russia
Democratic Republic of the Congo
 
  • Katanga (Shaba)
    • Lulua
Paul De Bondt collection
Germany
 
  • Rhineland-Palatinate
    • Rhein-Lahn-Kreis
      • Bad Ems
        • Frücht
Der Aufschluss Vol.55, March/April 2004
Greece
 
  • Attikí Prefecture (Attica; Attika)
    • Lavrion District (Laurion; Laurium; Lavreotiki Municipality)
      • Lavrion District Mines
        • Agios Konstantinos [St Constantine] (Kamariza)
Kolitsch, U., Rieck, B., Brandstätter, F., Schreiber, F., Fabritz, K. H., Blaß, G. & Gröbner, J. (2014): Neufunde aus dem altem Bergbau und den Schlacken von Lavrion (I). Mineralien-Welt 25 (1), 60-75 (in German).
Japan
 
  • Honshu Island
    • Chubu Region
      • Shizuoka Prefecture
        • Kawazu
Powder XRD by John Attard, January 2008.
    • Tohoku Region
      • Iwate Prefecture
        • Karumai
Nambu M, Tanida K (1967) Manjirōite, a new manganese dioxide mineral, from Kohare Mine, Iwate Prefecture, Japan. Journal of the Japanese Association of Mineralogists, Petrologists and Economic Geologists 58, 39-54
Dr. Matsuo Nambu collection (curated at Geological Survey of Japan); Nambu M, Tanida K (1967) Manjirōite, a new manganese dioxide mineral, from Kohare Mine, Iwate Prefecture, Japan. Journal of the Japanese Association of Mineralogists, Petrologists and Economic Geologists 58, 39-54
        • Kuji City
          • Yamagata
Nambu & Tanida (1980) Koubutsugaku Zasshi, 14 (special volume), 62-85.
        • Kunohe-gun
          • Hirono-cho
            • Ono
Dr. Matsuo Nambu collection (curated at Geological Survey of Japan); Nambu M, Tanida K (1967) Manjirōite, a new manganese dioxide mineral, from Kohare Mine, Iwate Prefecture, Japan. Journal of the Japanese Association of Mineralogists, Petrologists and Economic Geologists 58, 39-54
          • Karumai-cho
Nambu & Tanida (1980) Koubutsugaku Zasshi, 14 (special volume), 62-85.
        • Kunohe
Dr. Matsuo Nambu collection (curated at Geological Survey of Japan)
Portugal
 
  • Guarda District
    • Gouveia
      • Folgosinho
-Idoia Garate-Olabe,Encarnacion Roda-Robles,Pedro-Pablo Gil-Crespo, Alfonso Pérez,Romeu Vieira, Alexandra Lima, Estudio Textural y Mineralogico del Dique de Cuarzo con Fosfatos de Folgosinho (Guarda, Portugal) Macle N°16 junio 2012 revista de la sociedad espanola de mineralogia
Romania
 
  • Caraş-Severin Co.
    • Banat Mts
      • Ocna de Fier-Dognecea District
http://minerals-of-the-carpathians.eu
Russia
 
  • Urals Region
    • Southern Urals
      • Chelyabinsk Oblast
        • Plast
          • Kochkar' District
            • Svetlyi
Igor Savin's data
South Africa
 
  • Northern Cape Province
    • Kalahari manganese field
Minerals of South Africa; Preston, P. C. C. R. (2009). Physical and chemical characterization of the manganese ore bed at the Mamatwan mine, Kalahari manganese field (Doctoral dissertation).
Willy Israel and Clement Smith collections
USA
 
  • Arizona
    • Cochise Co.
      • Tombstone Hills
        • Tombstone District
          • Oregon-Prompter Mine group
Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 289.
Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd. ed.:76
  • Colorado
    • Teller Co.
      • Cripple Creek District
Econ Geol (1985) 80:1669-1688
Min Rec 36:2 pp143-185
  • New Jersey
    • Sussex Co.
      • Franklin mining district
        • Ogdensburg
Mike Scott S106121 from Cureton 1990 ID A. Roberts GSC 1991
Mineral and/or Locality  
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