Graeserite R110054



Name: Graeserite
RRUFF ID: R110054
Ideal Chemistry: Fe3+4Ti3As3+O13(OH)
Locality: Binntal, Wallis, Switzerland
Source: Bob Jenkins [view label]
Owner: RRUFF
Description: Black prismatic crystals, associated with brown rutile, yellow muscovite, green clinochlore and colorless orthoclase
Status: The identification of this mineral has been confirmed by single-crystal X-ray diffraction.
RAMAN SPECTRUM 
RRUFF ID:
Sample Description: Unoriented Raman on the primary sample
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BROAD SCAN WITH SPECTRAL ARTIFACTS
RRUFF ID: R110054
Wavelength:
Sample Description: Unoriented Raman on the primary sample
Instrument settings: Thermo Almega XR 532nm @ 100% of 150mW
POWDER DIFFRACTION 
RRUFF ID: R110054.9
Sample Description: Single crystal, powder profile is calculated
Cell Refinement Output: a: 5.0143(4)Å    b: 14.260(2)Å    c: 7.1716(8)Å
alpha: 90°    beta: 105.254(7)°    gamma: 90°   Volume: 494.7(2)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 Graeserite

American Mineralogist Crystal Structure Database Record: [view record]

Berlepsch P, Armbruster T (1998) The crystal structure of Pb2+-bearing graeserite, Pb0.14(Fe,Ti)7AsO12+x(OH)2-x, a mineral of the derbylite group, Schweizerische Mineralogische und Petrographische Mitteilungen, 78, 1-9

Krzemnicki M S, Reusser E (1998) Graeserite, Fe4Ti3AsO13(OH), a new mineral species of the derbylite group from the Monte Leone Nappe, Binntal Region, Western Alps, Switzerland, The Canadian Mineralogist, 36, 1083-1104   [view file]

Jambor J L, Roberts A C (1999) New mineral names, American Mineralogist, 84, 990-994   [view file]

Roth P (2007) Graeserite, in Minerals first discovered in Switzerland and minerals named after Swiss individuals Kristallografik Verlag Achberg Germany 76-77