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Ekmanite

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Big Photo

Brunsjö Mine (Brunnsjö Mine), Grythyttan, Hällefors, Västmanland, Sweden
© G.Fraccaro




System:OrthorhombicLustre:
A variety of Stilpnomelane

Obsolete name for a Mn-rich stilpnomelane; the name was discredited in 1954.

The Mica Subcommittee (1998) regarded this as possibly Smectite.

Originally described from Brunsjö Mine (Brunnsjö Mine), Grythyttan, Hällefors, Västmanland, Sweden.

Classification of Ekmanite

IMA status:Discredited 1954
mindat.org URL:http://www.mindat.org/min-6912.html
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Crystallography of Ekmanite

Crystal System:Orthorhombic

Other Names for Ekmanite

Synonyms:
Ekmannite
Other Languages:
German:Ekmanit
Spanish:Ekmanita

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 Ekmanite

Reference List:

- +
American Mineralogist (1954), 39, 946

Canadian Mineralogist (1998): 36: 905.

European Journal of Mineralogy (1999) 11: 299.


http://www.minsocam.org/ammin/AM39/AM39_946.pdf

Internet Links for Ekmanite

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    • Localities for Ekmanite

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    (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.
    Sweden
     
    • Värmland
      • Filipstad
    		No reference listed
    • Västmanland
      • Hällefors
        • Grythyttan
    		GFF 11, 25; Am Min (1954) 39:946-956
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    Copyright © Jolyon Ralph and Ida Chau 1993-2011. 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. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register. Current server date and time: 19th Jun 2011 04:38:01
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