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Knebelite

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Formula:
from (Fe
 
1.5
Mn
 
0.5
)
 
2
SiO
 
4
to (Mn
 
1.5
Fe
 
0.5
)
 
2
SiO
 
4
A variety of Fayalite-Tephroite Series

Definitions vary (manganoan fayalite or intermediate member of the Fayalite-Tephroite Series).

Classification of Knebelite

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Chemical Properties of Knebelite

Formula:
from (Fe
 
1.5
Mn
 
0.5
)
 
2
SiO
 
4
to (Mn
 
1.5
Fe
 
0.5
)
 
2
SiO
 
4
Simplified for copy/paste:from (Fe1.5Mn0.5)2SiO4 to (Mn1.5Fe0.5)2SiO4
Essential elements:Fe, O, Si
All elements listed in formula:Fe, Mn, O, Si

Other Names for Knebelite

Synonyms:
Igelströmite (of Weibull)
Other Languages:
German:Knebelit
Simplified Chinese:锰铁橄榄石
Spanish:Knebelita

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 Knebelite

Reference List:

- +
J.W. Dobereiner (1817): Jour. Ch. Ph., xxi, p. 49. [Analysis by Dobereiner: silica : 32.5, protoxide of manganese: 35.0, protoxide of iron: 32.0, total 99.5%; the original paper does not give a locality for knebelite, but a later paper mentioned in Dana 6, p 457, gives the locality as found in granite near Ilmenau.]

Internet Links for Knebelite

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  • Localities for Knebelite

    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.
    Canada
     
    • British Columbia
      • Slocan Mining Division
        • Riondel
    Min Rec (1977) 8:34-36
    China
     
    • Hubei Province
      • Huanggang Prefecture
        • Luotian Co.
          • Hejiawan
    Jingqu Yao (1992): Acta Petrologica et Mineralogica 11(3), 257-266
    Jingqu Yao (1992): Acta Petrologica et Mineralogica 11(3), 257-266
      • Wuhan Prefecture
        • Huangpi District
    Jingqu Yao (1992): Acta Petrologica et Mineralogica 11(3), 257-266
    • Hunan Province
      • Chenzhou Prefecture
        • Suxian District
          • Dongpo ore field
    Zhaojian Zeng (1997): Hunan Geology 16(3), 163-166
    • Liaoning Province (Manchuria; Dongbei Region)
      • Huludao Prefecture
        • Jianchang Co.
          • Bajiazi Zn-Pb-Ag deposit
    Yiming Zhao, Yongguan Dong, Daxin Li, and Chengsi Bi (2003): Ore Geology Reviews 23, 153-182.
    Yiming Zhao, Yongguan Dong, Daxin Li, and Chengsi Bi (2003): Ore Geology Reviews 23, 153-182
    Yiming Zhao, Yongguan Dong, Daxin Li, and Chengsi Bi (2003): Ore Geology Reviews 23, 153-182.
    Yiming Zhao, Yongguan Dong, Daxin Li, and Chengsi Bi (2003): Ore Geology Reviews 23, 153-182.
    Japan
     
    • Honshu Island
      • Kanto Region
        • Tochigi Prefecture
          • Nikko City
            • Ashio-machi
    Introduction to Japanese Minerals (Geological Survey of Japan, 1970)
      • Tohoku Region
        • Iwate Prefecture
          • Kamaishi City
    Dr. Matsuo Nambu collection (curated at Geological Survey of Japan)
    Russia
     
    • Far-Eastern Region
      • Primorskiy Kray
    American Mineralogist, Vol. 64, 1979, pp. 432-435
    • Northern Caucasus Region
      • North Ossetia Republic
        • Sadon ore district
    Groznova, E.O., Dobrovol’skaya, M.G., Kovalenker, V.A., Davydov, K.V., Bitarov, V.T., and Razin, M.V. (2006): Geology of Ore Deposits 48(2), 108-133.; Groznova et al (2005) New Data on Minerals Vol 40 pp72-79
    Slovakia
     
    • Košice Region
      • Rožňava Co.
        • Rožňava (Rosenau; Rozsnyó)
          • Čučma
    Koděra et all.,1990: Topografická mineralógia Slovenska, I-III, 1590p; Rojkovič, I. (2001): Geolines 13, 34-41.
    South Africa
     
    • Northern Cape Province
      • Namakwa District (Namaqualand)
    Minerals of South Africa
    Sweden
     
    • Dalarna
      • Borlänge
      • Hedemora
        • Hag mine ore field
      • Ludvika
    Weibull, M. (1884): Mineralogiska notiser. 1) Igelströmit från Hillängs grufvor i Dalarne. Geologiska Föreningen i Stockholm Förhandlingar. 7:263-265
      • Smedjebacken
    Natural History Museum, Stockholm collection ( item # HS1392, Hj. Sjögren collection)
        • Väster Silvberg
    Natural History Museum, Stockholm collection ( item # 19530399, N. Sundius collection)
    Weibull, M. (1883): Några Mangan-mineral från Vester-Silfberget i Dalarne. Geologiska Föreningen i Stockholm Förhandlingar 6: 499-509
    • Gästrikland
      • Hofors
    SGU rapp130 (2009)
        • Torsåker
    SGU rapp130 (2009)
      • Ovanåker
    • Hälsingland
      • Ljusdal
        • Los
    Stenberg, T. (2002): Los den 7-8 september 2002- berättelser från mineralljakt och viltsafari. Berg & Mineral (Stockholms Amatørgeologiska Sällskap), 12 (nr 37), 7-13
    • Närke
      • Askersund
    No reference listed
    No reference listed
      • Hallsberg
      • Lekeberg
        • Vintrosa
    • Södermanland
      • Nyköping
        • Svärta ore field
    No reference listed
        • Tunaberg
      • Strängnäs
        • Åker
    No reference listed
    • Uppland
      • Östhammar
        • Dannemora
    No reference listed
    • Värmland
      • Filipstad
        • Gåsborn
    No reference listed
    • Västmanland
      • Hällefors
        • Grythyttan
    No reference listed
    Jasinski, A.W. (1983): Some aspects of the silver mineralization in the Hällefors region (Bergslagen, Sweden). Mineralogical Magazine. 47, 507-514
      • Lindesberg
      • Ljusnarsberg
    No reference listed
    No reference listed
      • Nora
      • Norberg
    No reference listed
    USA
     
    • New Hampshire
      • Coos Co.
        • Stark
    Meyers & Stewart (1956). The Geology of NH: Part III Minerals and Mines. p.43-44
    • Rhode Island
      • Providence Co.
    Yale Peabody Museum #671
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    Copyright © Jolyon Ralph and Ida Chau 1993-2014. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them. 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 thousands 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: June 7, 2014 16:19:35
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