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Manganese Oxides

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A review on these minerals has been published by Post (1999).

Classification of Manganese Oxides

Other Names for Manganese Oxides

Name in Other Languages:
Simplified Chinese:氧化锰矿物
Traditional Chinese:氧化錳礦物

Other Information

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 Manganese Oxides

Reference List:
Post, J. E. (1999): Manganese oxide minerals: crystal structures and economic and environmental significance. Proc. Natl. Acad. Sci., USA 96, 3447-3454.

Internet Links for Manganese Oxides URL:
Please feel free to link to this page.
The following Manganese Oxides specimens are currently listed for sale on

Significant localities for Manganese Oxides

Showing 37 significant localities out of 11,563 recorded on

This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.
(TL) indicates type locality for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
  • Jujuy
    • Susques department
[Psilomelane] Raúl Jorge Tauber Larry
  • Tasmania
    • Burnie City
      • Hampshire district
        • Kara Mines
[Ranciéite] Bottrill (unpub)
  • Western Australia
    • East Pilbara Shire
      • Weeli Wolli Creek Area
[Pyrolusite] J M Bennett Collection
  • Lower Austria
    • Waldviertel
      • Raxendorf
        • Pfaffenhof
          • Pölla
[Todorokite] NIEDERMAYR, Gerhard & POSTL, Walter (1992a): 876. Todorokit aus einem Graphitvorkommen von Pfaffenhof bei Raxendorf, Niederösterreich.- In: NIEDERMAYR, Gerhard et al.: Neue Mineralfunde aus Österreich XIL, Carinthia II, 182/102, Teil 1, 138, Klagenfurt.
  • Mato Grosso do Sul
    • Corumbá
[Cryptomelane] Federico Ahlfeld and Alejandro Schneider-Scherbina (1964) Los Yacimientos Minerales y de Hidrocarburos de Bolivia. (Ministerio de Minas y Petroleo, La Paz)
  • Nova Scotia
    • Hants Co.
[Pyrolusite] Steve Sorrell Collection; Sir John William Dawson (1891) The geology of Nova Scotia, New Brunswick and Prince Edward Island: or Arcadian Geology 4th ed. MacMillan Edinburgh
  • Bourgogne-Franche-Comté
    • Saône-et-Loire
      • La Chapelle-de-Guinchay
        • Romanèche-Thorens
[Romanèchite] Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 954; Lapis (1989): 1: 6.
  • Occitanie
    • Ariège
      • Vicdessos
        • Sem
[Ranciéite] [American Mineralogist, 54, 1741-1742 (1969); MinRec 9:133]
  • Baden-Württemberg
    • Black Forest
      • Triberg
        • Gremmelsbach
[Pyrolusite] No reference listed
  • Lower Saxony
    • Peine
  • Thuringia
    • Harz
      • Nordhausen
        • Ilfeld
[Manganite] No reference listed
    • Thuringian Forest
      • Ilmenau District
        • Langewiesen
[Hausmannite] HAUSMANN, J.F.L. (1813): Blättricher Schwarz-Braunstein.- Handbuch der Mineralogie, Vol. 1, p. 293. Göttingen
  • Madhya Pradesh
    • Jabalpur Division
      • Chhindwara District (Chindawara District; Chindwara District)
[Hollandite] Roy, S., and Purkait, P.K. (1968): Contributions to Mineralogy and Petrology 20, 86-114; Biagioni, C., Capalbo, C., Pasero, M. (2013): Nomenclature tunings in the hollandite supergroup. European Journal of Mineralogy 25, 85-90.
  • Emilia-Romagna
    • Parma Province
      • Taro Valley
        • Ceno Valley
          • Varsi
[Todorokite] Adorni F., Battilocchi G., Bersani D., Bo S., Calderini V. (2005) - Rocca Predellara e La Pianazza, Varsi, Appennino Parmense - Mineral Parma, Anno IV, n.1, 5-8.
  • Sicily
    • Enna Province
      • Pietraperzia
Gaetano Sicurella collection (2006)
  • Hokkaido
    • Shiribeshi Province
      • Yoichi
[Todorokite] Introduction to Japanese Minerals (Geological Survey of Japan, 1970)
  • Urals Region
    • Southern Urals
      • Bashkortostan Republic (Bashkiria Republic)
[Vernadite] Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
      • Chelyabinsk Oblast'
        • Kusinskii raion
          • Magnitka
[Akhtenskite] [Clark, 1993 - "Hey's Mineral Index, 3rd Edition"]; Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
South Africa
  • Northern Cape Province
    • Kalahari manganese field
[Todorokite] Von Bezing, K. L. et al. (1991) The Kalahari manganese field: An Update, Mineralogical Record 22(4) 279-302; Cairncross, B., and Dixon, R., (1995) Minerals of South Africa. The Geological Society of South Africa, Linden 2014, RSA, pg 249
  • Värmland
    • Filipstad
[Pyrochroite var: Hydrohausmannite] Frondel, C. (1953): New manganese oxides: hydrohausmannite and woodruffite. American Mineralogist 38, 761-769.
      • Persberg district
        • Pajsberg
[Pyrochroite] [Am Min 50 (1965), 1296; MinRec 1:165]
  • Scotland
    • Buchan Grampian
      • Ellon
[Birnessite] Jones, L.H.P., Milne, A.A. (1956) Birnessite, a new manganese oxide mineral from Aberdeenshire, Scotland. Mineralogical Magazine: 31: 283-288. Embrey, P.G. (1978) Fourth supplementary list of British minerals. Mineralogical Magazine, vol. 42, n° 322, 169-177.
  • Kirovohrad Oblast' (Kirovohrads'ka Oblast')
    • Haivoron district
[Groutite] Dominik Schlaefli - collection
  • Arizona
    • Cochise Co.
      • Tombstone Hills
        • Tombstone District
[Cryptomelane] Richmond, W.E. & M. Fleischer (1942), Cryptomelane, a new name for the commonest of the 'psilomelane' minerals, American Mineralogist: 27: 607-610.
    • Greenlee Co.
      • Shannon Mts
        • Copper Mountain District (Clifton-Morenci District)
          • Copper Plate Gulch
            • Coronado vein
              • Coronado Mine (Coronado Mining Co. property; Arizona Copper Co. group [in part])
[Coronadite] AmMin.: 27 (1942): 48; AmMin.: 74 (1989): 913; Handbook of Mineralogy, Vol. 3 (1997).
  • Connecticut
    • Litchfield Co.
      • Salisbury
        • Salisbury District
[Pyrolusite] Schairer, J. F. (1931), The Minerals of Connecticut. State Geological and Natural History Survey Bulletin 51. Former Miller collection.
  • Maine
    • Oxford Co.
      • Albany
[Todorokite] King, V. T., 2009, Maine Feldspar, Families, and Feuds.
  • Maryland
    • Carroll Co.
      • Medford
[Todorokite] Mr. Fred Parker, Columbia, MD.
  • Minnesota
    • Crow Wing Co.
      • Cuyuna North Range
        • Ironton
[Groutite] American Mineralogist (1947): 32: 654-659.
[Groutite] Amer.Min.(1945) 30, 169
  • Nevada
    • White Pine Co.
      • White Pine District
        • Silver Belt
          • Treasure Hill
            • Summit area
[Aurorite] NBMG Spec. Pub. 31 Minerals of Nevada
  • New Jersey
    • Sussex Co.
      • Franklin Mining District
        • Franklin
[Feitknechtite] Frondel, C.: Am. Min.:38:761-769 (1953); Wadsley, A.D.: Am. Min.:40:349-353 (1955); Dunn(1995):Pt4:591-592.
        • Ogdensburg
          • Sterling Hill
[Wad] Palche et al. (1944) Dans's System of Mineralogy, v. 1.
  • New Mexico
    • Sierra Co.
[Ramsdellite] Northrop, Minerals of New Mexico, 3rd Rev. Ed., 1996
  • Vermont
    • Bennington Co.
[Romanèchite] Matthew Lambert
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