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Schefferite

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About SchefferiteHide

Formula:
(Ca,Mn)(Mg,Fe,Mn)Si2O6
Name:
Named in 1862 by Johann Andreas Christian Michaelson in honor of Henrik Teofilus Scheffer [December 28, 1710, Stockholm, Sweden - August 10, 1759, Stockholm, Sweden], a Swedish physician, botanist, and chemist who made studies of platinum before it was established as a new element. He was a student of Celsius and Brandt.
A variety of Diopside

A brown manganoan variety of Diopside that frequently shows pronounced parting (IMA Subcommittee on Pyroxenes 1988).

Originally described from Långban, Filipstad, Värmland, Sweden.




Classification of SchefferiteHide

Notes:
Rejected by the IMA

Chemical Properties of SchefferiteHide

Formula:
(Ca,Mn)(Mg,Fe,Mn)Si2O6

Other Language Names for SchefferiteHide

German:Schefferit
Spanish:Schefferita

Common AssociatesHide

Associated Minerals Based on Photo Data:
16 photos of Schefferite associated with CalciteCaCO3
6 photos of Schefferite associated with HedyphaneCa2Pb3(AsO4)3Cl
5 photos of Schefferite associated with LångbaniteMn2+4Mn3+9Sb5+O16(SiO4)2
5 photos of Schefferite associated with WillemiteZn2SiO4
4 photos of Schefferite associated with Richterite{Na}{NaCa}{Mg5}(Si8O22)(OH)2
4 photos of Schefferite associated with Hyalophane(K,Ba)[Al(Si,Al)Si2O8]
4 photos of Schefferite associated with FluorapatiteCa5(PO4)3F
4 photos of Schefferite associated with AndraditeCa3Fe3+2(SiO4)3
3 photos of Schefferite associated with Roméite GroupA2(Sb5+)2O6Z
1 photo of Schefferite associated with ClinohedriteCaZn(SiO4) · H2O

Other InformationHide

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

Internet Links for SchefferiteHide

Localities for SchefferiteHide

This 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.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
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 di Vara
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
 
  • Iwate Prefecture
    • Miyako City
Pohwat, P. (2013) Rocks & Minerals, 88 (2), 168.
  • Nagano Prefecture
    • Kamiina District
Lee, D. E. (1955)
  • Yamaguchi Prefecture
    • Iwakuni City
Pohwat, P. (2013) Rocks & Minerals, 88 (2), 168.
Romania
 
  • Caraş-Severin
    • Banat Mountains
Hîrtopanu, P., Udubaşa, G. & Scott, P. (2003): Minerals of the Metamorphosed Mn-Fe Deposits in Romania: Old Deposits, New Species. Acta Mineralogica-Petrographica, Abstract Series 1, Szeged, 44.
Sweden
 
  • Dalarna County
    • Avesta
      • Folkärna
  • Örebro County
    • Hällefors
      • Grythyttan
No reference listed
    • Lindesberg
Roy, S. (1972). Metamorphism of sedimentary manganese deposits. Acta Mineralogica-Petrographica, 20(2), 325-336.
  • Värmland County
    • Filipstad
[MinRec 9:113]
      • Nordmark District
        • Jakobsberg ore field
GFF 2, 179
      • Persberg ore district
        • Pajsberg
Nysten, P. (1984): Kleinod des Nordens - Harstigen in Schweden. Magma 2/1984, 12-30.
No reference listed
  • Västmanland County
    • Norberg
      • Getback ore field
No reference listed
Garnum, E. & Torstensson, O. (2002): Exkursion til Norberg. Berg & Mineral (Stockholms Amatørgeologiska Sällskap), 12 (nr 37), 14-16 ; Nysten, P. (2020) Manganrika hematitmalmer av Långbantyp från Norberg och Saladamm, Västmanland, centrala Bergslagen, Sverige. Norsk Mineralsymposium 2020: 5-19
USA
 
  • Michigan
www.deq.state.mi.us/documents/deq-glm-rcim-geology-Minerals_Found_In_Michigan.Pdf.
      • Champion
Mineralogy of Michigan (2004) Heinrich & Robinson
  • New Jersey
    • Sussex County
Palache, Charles, 1935, The Minerals of Franklin and Sterling Hill, Sussex County, New Jersey, USGS PP 180.
        • Franklin
Palache, Charles, 1935, The Minerals of Franklin and Sterling Hill, Sussex County, New Jersey, USGS PP 180.
 
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