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Name: Ferriallanite-(La) RRUFF ID: R141069 Ideal Chemistry: CaLa(Fe3+AlFe2+)[Si2O7][SiO4]O(OH) Locality: In den Dellen quarries, Niedermendig, Mendig, Laach lake volcanic complex, Eifel, Rhineland-Palatinate, Germany Source: Ch. and H. Schäfer [view label] Owner: RRUFF Description: Black tabular crystals embedded in matrix, associated with sanidine, magnetite and cancrinite. Status: The identification of this mineral has been confirmed only by single crystal X-ray diffraction. |
Mineral Groups: [ allanite (7) ] [ epidote (31) ] |
RAMAN SPECTRUM | ||||||||||||
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BROAD SCAN WITH SPECTRAL ARTIFACTS | ||||||||||||
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POWDER DIFFRACTION | |||||||
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RRUFF ID: | R141069.9 | ||||||
Sample Description: | Single crystal, powder profile is calculated | ||||||
Cell Refinement Output: |
a: 8.906(2)Å b: 5.755(1)Å c: 10.116(2)Å alpha: 90° beta: 114.64(1)° gamma: 90° Volume: 471.3(1)Å3 Crystal System: monoclinic |
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REFERENCES for Ferriallanite-(La) | |
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American Mineralogist Crystal Structure Database Record: [view record] |
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Williams P A, Hatert F, Pasero M, Mills S J (2011) IMA Commission on new minerals, nomenclature and classification (CNMNC) Newsletter 8. New minerals and nomenclature modifications approved in 2011, Mineralogical Magazine, 75, 289-294 [view file] |
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Kolitsch U, Mills S J, Miyawaki R, Blass G (2012) Ferriallanite-(La), a new member of the epidote supergroup from the Eifel, Germany, European Journal of Mineralogy, 24, 741-747 [view file] |
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Bačík P, Uher P, Kozáková P, tevko M, Ozdín D, Vaculovič T (2018) Vanadian and chromian garnet- and epidote-supergroup minerals in metamorphosed Paleozoic black shales from Čierna Lehota, Stráovské vrchy Mountains, Slovakia: crystal chemistry and evolution, Mineralogical Magazine, 82, 889-911 |
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