Ferriallanite-(La) R141069

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Record 22 of 25  


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 (25) ]
RAMAN SPECTRUM 
RRUFF ID:
Sample Description: Unoriented sample
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BROAD SCAN WITH SPECTRAL ARTIFACTS
RRUFF ID: R141069
Wavelength:
Sample Description: Unoriented sample
Instrument settings: Thermo Almega XR 532nm @ 100% of 150mW
POWDER DIFFRACTION 
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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Calculated diffraction file.

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Output file from the Bruker D8 Advance instrument. Includes device headers and XY data.

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REFERENCES for Ferriallanite-(La)

American Mineralogist Crystal Structure Database Record: [view record]

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]

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]

Bačík P, Uher P, Kozáková P, Števko M, Ozdín D, Vaculovič T (2018) Vanadian and chromian garnet- and epidote-supergroup minerals in metamorphosed Paleozoic black shales from Čierna Lehota, Strážovské vrchy Mountains, Slovakia: crystal chemistry and evolution, Mineralogical Magazine, 82, 889-911