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Barkevikite



An obsolete name for a dark amphibole from pegmatites in the Langesundsfjord area.
The composition of barkevikite corresponds to several species within the range ferroedenite-hastingsite-magnesiohastingsite, depending on and varying from locality to locality.
"Barkevikite" from its "type locality", Skutesundskjær near Barkevik, in the eastern part of the Langesundsfjord, is ferroedenite (Larsen 1995, Larsen 1998).

Classification of Barkevikite

IMA status:Discredited 1978
Explanation of status:Amphibole with variable composition (ferroedenite-hastingsite-magnesiohastingsite).
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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 Barkevikite

Reference List:Larsen, A.O. (1995): Identiteten til de sorte amfibolene fra Oslofeltets syenittpegmatitter. Norsk Bergverksmuseum, Skrift 9, 27-34.

Larsen, A.O. (1998): Revisjon av nomenklatur for de sorte amfibolene fra Oslofeltets syenittpegmatitter. Norsk Bergverksmuseum, Skrift 14, 9.

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    Localities for Barkevikite

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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.
    Greenland
     
    • Kitaa (West Greenland) Province
      • Arsuk
        • Arsuk Firth
    		Hodson, M.E., and Finch, A.A. (1997): Contributions to Mineralogy and Petrology 127, 46-56.
      • Narsaq
        • Ilimaussaq complex
          • Tunugdliarfik Firth (Eriksfjord)
    		Boeggild, O.B. (1953): The Mineralogy of Greenland, Meddelelser om Groenland, Vol. 149/3, Reitzels Forlag Koebenhavn
    Madagascar
     
    • Antsiranana Province
      • Diana (Northern) Region
        • Nosy Be District
    		Behier, J. (1963): Carte mineralogique de Madagascar. Archive Service Géologique Madagascar. A 1871
    Norway
     
    • Vestfold
      • Larvik
        • Langesundsfjorden
          • Helgeroa
    		Brøgger, W.C. (1890): Die Mineralien der Syenitpegmatitgänge der südnorwegischen Augit-und Nephelinsyenite. Zeitschrift für Kristallographie und Mineralogie 16. p. 65-67
      • Sandefjord
        • Vesterøya
    		Raade, G & Larsen, A. O.: Polylithionite from syenite pegmatite at Vøra, Sandefjord, Oslo Region, Norway. Contributions to the Mineralogy of Norway, no 65. Norsk Geologisk Tidskrift 60 (1980), 117-124
    Ukraine
     
    • Zaporozh'e Oblast'
      • Azov Sea Region
    		Ryabchikov, I.D., Kogarko, L.N., Krivdik, S.G., and Ntaflos, T. (2008): Geology of Ore Deposits 50(6), 423-432.
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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: 20th Nov 2009 04:53:59