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Name: Christofschäferite-(Ce) RRUFF ID: R141090 Ideal Chemistry: (Ce,La,Ca)4Mn(Ti,Fe)3(Fe,Ti)(Si2O7)2O8 Locality: Wingertsberg pumice quarry, Laach lake volcano, Mendig, Eifel, Germany Source: Ch. and H. Schäfer [view label] Owner: RRUFF Description: Thick tabular or short prismatic black crystals, 2-fold twin around a*, associated with light brown rhodonite and colorless orthoclase. Status: The identification of this mineral has been confirmed by single-crystal X-ray diffraction. |
Mineral Group: [ Chevkinite (4) ] |
RAMAN SPECTRUM | ||||||||||||
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BROAD SCAN WITH SPECTRAL ARTIFACTS | ||||||||||||
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POWDER DIFFRACTION | |||||||
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RRUFF ID: | R141090.9 | ||||||
Sample Description: | Single crystal, powder profile is calculated | ||||||
Cell Refinement Output: |
a: 13.357(3)Å b: 5.733(1)Å c: 11.085(2)Å alpha: 90° beta: 100.58(1)° gamma: 90° Volume: 834.4(1)Å3 Crystal System: monoclinic |
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REFERENCES for Christofschäferite-(Ce) | |
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American Mineralogist Crystal Structure Database Record: [view record] |
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Chukanov N V, Aksenov S M, Rastsvetaeva R K, Belakovskiy D I, Göttlicher J, Britvin S N, Möckel S (2012) Christofschäferite-(Ce), (Ce,La,Ca)4Mn2+(Ti,Fe3+)3(Fe3+,Fe2+,Ti)(Si2O7)2O8, a new chevkinite-group mineral from the Eifel area, Germany, New Data on Minerals. Moscow, 47, 31-40 [view file] |
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Williams P A, Hatert F, Pasero M, Mills S J (2012) IMA Commission on New Minerals, Nomenclature and classification (CNMNC) Newsletter 13, New minerals and nomenclature modifications approved in 2012, Mineralogical Magazine, 76, 807-817 [view file] |
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Belakovskiy D (2013) New mineral names, American Mineralogist, 98, 2201-2204 [view file] |
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Macdonald R, Bagiński B, Belkin H E, Stachowicz M (2019) Composition, paragenesis, and alteration of the chevkinite group of minerals, American Mineralogist, 104, 348-369 [view file] |
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