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Manganese Dendrites

Big Photo

Vendoia Quarry, Valdottavo, Borgo a Mozzano, Lucca Province, Tuscany, Italy
© Rui Nunes 2005

Show Manganese Dendrites Photos (65)
A variety of Manganese Oxides

Black dendritic films of various visually indistinguishable black manganese oxides, may consist of birnessite, coronadite, cryptomelane, hollandite, romanechite, todorokite or other species. Many manganese minerals have similar strong x-ray lines and line-broadening can make x-ray diffraction identification ineffectual. Potter and Rossman (1979) have found that infra-red spectroscopy has been helpful in verifying some dendrite mineralogy. Currently, there are no known manganese dendrites in the world which contain pyrolusite.

Classification of Manganese Dendrites

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Other Names for Manganese Dendrites

Synonyms:
Dendriti di Manganese
Other Languages:
German:Mangandendriten

Other Information

Health Warning: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 Dendrites

Reference List:Science 196: 1446-1448 (1977)
Potter, R. and Rossman, G., Mineralogy of Manganese Dendrites and Coatings, Am.Min. 64: 1219-1226 (1979)

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    Localities for Manganese Dendrites

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    The 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. ? 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.
    Argentina
     
    • San Luis
      • Coronel Pringles Department
    Australia
     
    • Northern Territory
      • Harts Ranges (Hartz Ranges)
    		www.fossicking.com.au/fossicking_in_NT/fossicking_and_mining_07.htm
    Austria
     
    • Burgenland
      • Großpetersdorf
        • Badersdorf
    		http://www.badersdorf.at/Wirtschaft/holler/minerale.htm
    Brazil
     
    • Southeast Region
      • Minas Gerais
        • Doce valley
          • Governador Valadares
    Denmark
     
    • Jylland
      • Farsø
        • Ertebølle
    		Bert de Ruiter
    France
     
    • Alsace
      • Haut-Rhin
        • Lauch Valley
          • Soultz-Haut-Rhin
    		J.-L. Hohl: "Minéraux et Mines du Massif Vosgien", Editions du Rhin (Mulhouse), 1994
    Germany
     
    • Bavaria
      • Franconia
        • Fichtelgebirge
          • Wunsiedel
            • Göpfersgrün
    		F. Müller: "Bayerns steinreiche Ecke", 2nd ed., Oberfränkische Verlagsanstalt (Hof), 1984
            • Sinatengrün
    		F. Müller: "Bayerns steinreiche Ecke", 2nd ed., Oberfränkische Verlagsanstalt (Hof), 1984
      • Lower Bavaria
        • Eichstätt
          • Blumenberg Mt.
    		S. Weiß: "Mineralfundstellen, Deutschland West", Weise (Munich), 1990
          • Solnhofen
    		S. Weiß: "Mineralfundstellen, Deutschland West", Weise (Munich), 1990
      • Upper Palatinate
        • Oberpfälzer Wald
          • Weiden
            • Oberhöll
    		S. Weiß: "Mineralfundstellen, Deutschland West", Weise (Munich), 1990
    • North Rhine-Westphalia
      • Aachen
        • Stolberg
          • Gressenich
    		found by FdW
      • Münsterland
        • Steinfurt
          • Wettringen
    		bert.deruiter@gmail.com
    • Schleswig-Holstein
      • Plön
        • Bösdorf - Bad Malente area
    		A. Wittern: "Mineralfundorte in Deutschland", Schweizerbart (Stuttgart), 2001
    Hungary
     
    • Baranya Co.
      • Mecsek Mts.
        • Pécs
    		Mineral Species of Hugary, 2005
    • Borsod-Abaúj-Zemplén Co.
      • Rudabányai Mts.
    		Mineral Species of Hungary, 2005
    • Fejér Co.
      • Szár Hill
        • Kőszárhegy
    		Mineral Species of Hungary, 2005
    • Heves Co.
      • Mátra Mts.
        • Gyöngyöstarján
    		GEODA
    • Komárom-Esztergom Co.
      • Gerecse Mts.
        • Tatabánya
    		GEODA/2001
    • Nógrád Co.
      • Mátra Mts.
    		Mineral Species of Hungary, 2005
    Italy
     
    • Tuscany
      • Lucca Province
        • Borgo a Mozzano
          • Valdottavo
    		C. Biagioni
    Slovakia
     
    • Košice Region
      • Southern Slanské Mts
    		Alfred Passath Collection
    South Africa
     
    • KwaZulu-Natal Province
      • Durban
        • Bellair
    		Heron, H.D.C. (1990/1991). A note on manganese dendrite and oxide masses from selected Natal localities. Micro News and Views, 17(1):2-6 and 17(2):2-4); Heron, H.D.C. (1996). Leached assemblages in dolerite boulders from level 3 NE at Coedmore Quarries, Durban. Unpublished report for the Quarry Management.
        • Cato Manor
          • Umbilo Valley
    		Heron, 1991). Locality Data Sheet (ML23): Ridgeview Quarry. Issued together with Micro News and Views 18(2) (1992).
    UK
     
    • England
      • Cumbria
        • North and Western Region (Cumberland)
          • West Cumberland Iron Field
            • Kirkland
    		Lloyd Llewellyn, self-collected (see picture)
    USA
     
    • Arizona
      • Pima Co.
        • Tucson Mts
          • Amole District
    		P Cristofono collection, 2006
    • Arkansas
      • Garland Co.
        • Hot Springs
    		 http://www.lgsweb.org/field00g.html
    • California
      • San Diego Co.
        • Pala District
          • Chief Mountain
            • Elizabeth R. Mine
    		Stephenson, J. 2008. Pala District Opens Wider: Oceanview Mine Strikes It Big. Gem News: Pala International, Fallbrook, CA. January 16th. [http://www.palagems.com/gem_news_2008_v1.htm#pegmatite]
    • Colorado
      • Hinsdale Co.
    		Rocks & Minerals: Sept, 1998
    • Connecticut
      • Hartford Co.
    		P Cristofono collection
      • Middlesex Co.
        • Portland
    		www.lmscc.org/case.htm
    • Iowa
      • Clinton Co.
    		Rocks & Minerals: Nov-Dec 2002
    • Kansas
    		www.people.ku.edu/~stalder/KS-minerals.html
    www.people.ku.edu/~stalder/KS-minerals.html
    Ransom, 1974. Gems and Minerals of America
    • Maine
      • Oxford Co.
        • Albany
    		P. Cristofono collection
        • Buckfield
    		AmMin 10:355-411 (1925)
        • Greenwood
    P. Cristofono collection
        • West Paris
    		King, V. and Foord, E., 1994, Mineralogy of Maine, v. 1.
    • Maryland
      • Montgomery Co.
        • Rockville
    		F. Parker (2005) "The Minerals of the Hunting Hill Quarry, Rockville, Maryland" Mineralogical Record 35:435-446.
    • Massachusetts
      • Essex Co.
      • Hampshire Co.
        • Easthampton
      • Middlesex Co.
    		P. Cristofono collection
      • Worcester Co.
        • Lunenburg
    		P Cristofono collection
    • Nevada
      • Washoe Co.
    • New Hampshire
      • Cheshire Co.
        • Walpole
    		P. Cristofono collection
        • Westmoreland
    		P Cristofono collection
      • Grafton Co.
        • Groton
    		P. Cristofono collection
      • Hillsborough Co.
        • Amherst
    		P. Cristofono collection
    P Cristofono collection, 2007
    • New Mexico
      • Hidalgo Co.
        • Pyramid Mts
          • Lordsburg District
            • Virginia District
    		P Cristofono collection, 2008
      • Luna Co.
    		P Cristofono collection
    • New York
      • Lewis Co.
        • Diana Township
          • Harrisville
    		St. Lawrence County Rock & Mineral Club
    • Pennsylvania
      • Adams Co.
        • Gettysburg
    		Rocks & Minerals 81:229-234
      • Northampton Co.
        • Forks Township
          • Easton
            • Chestnut Hill
    		www.delminsociety.net/easton.htm
    • Rhode Island
      • Providence Co.
        • Lincoln
          • Lime Rock
    		P Cristofono collection, 2008
    • South Dakota
      • Custer Co.
        • Custer District
          • Custer
    www.wind.cave.national-park.com/nmm.htm
    • Texas
      • Karnes Co.
    		www.wma-minelife.com/uranium/papers/karnes.pdf.
    • Wisconsin
      • Marathon Co.
    		www.uwrf.edu/~wc01/psilomelane.htm
    Mineral and/or Locality
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    Copyright © Jolyon Ralph and Ida Chau 1993-2009. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them.Further information contact the Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of hundreds of members and supporters. If you would like to add information to improve the quality of our database, then click here to register. Current server date and time: 10th Oct 2009 09:35:42