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Schefferite

Formula:
(Ca,Mn)(Mg,Fe,Mn)Si
 
2
O
 
6
A variety of Diopside

A manganoan variety of Diopside (IMA Subcommittee on Pyroxenes 1988).

Originally described from Långban, Filipstad, Värmland, Sweden.

(Note: schefferite from Franklin, NJ, is simply diopside - http://simplethinking.com/dunn/ch17/diopside.stm)

Classification of Schefferite

IMA status:Rejected
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Chemical Properties of Schefferite

Formula:
(Ca,Mn)(Mg,Fe,Mn)Si
 
2
O
 
6
Essential elements:Ca, Mg, O, Si
All elements listed in formula:Ca, Fe, Mg, Mn, O, Si

Other Names for Schefferite

German names:
Schefferit
Spanish names:
Schefferita
Varieties:
Zinc-Schefferite

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.

Articles/Blogs about Schefferite

Internet Links for Schefferite

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    Localities for Schefferite

    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.
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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.
    Italy
     
    • Aosta Valley
      • Saint-Marcel
    Bondi M., Mottana A, Kurat G., Rossi G, (1978) - Cristallochimica del Violano e della Schefferite di St Marcel (Vallle d'Aosta) - Rend. S.I.M.P., Milano, vol. 34, (I), pp. 15-25
    • Liguria
      • La Spezia Province
        • Borghetto Vara
          • Faggiona
    Palenzona A., Di Giovanni F., Borgo E. (1988) - La miniera di Manganese di Cerchiara (SP) - Rivista Miner. Ital., Milano, fasc. 4, pp.209-218
    Japan
     
    • Honshu Island
      • Chubu Region
        • Nagano Prefecture
          • Kami-Ina-gun
    Lee, D. E. (1955)
    Sweden
     
    • Dalarna
      • Avesta
        • Folkärna
    • Värmland
      • Filipstad
    [MinRec 9:113]
        • Nordmark
    GFF 2, 179
        • Pajsberg
    No reference listed
    • Västmanland
      • Hällefors
        • Grythyttan
    No reference listed
      • Lindesberg
    No reference listed
      • Norberg
    No reference listed
    USA
     
    • Michigan
    www.deq.state.mi.us/documents/deq-glm-rcim-geology-Minerals_Found_In_Michigan.Pdf.
        • Marquette iron range
          • Champion
    Mineralogy of Michigan (2004) Heinrich & Robinson
    Mineral and/or Locality
    Google
     
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