Billwiseite R130070

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Name: Billwiseite
RRUFF ID: R130070
Ideal Chemistry: Sb3+5Nb3WO18
Locality: Eastern margin of the Nanga Parbat – Haramosh massif at Stak Nala, 70 km east of Gilgit, Pakistan
Source: Frank C. Hawthorne
Owner: Frank C. Hawthorne
Description: Transparent, pale yellow. Associated with B-rich muscovite. Data from Hawthorne et al (2012)
Status: The identification of this mineral has been confirmed by X-ray diffraction and chemical analysis
Mineral Group: [ Not in a structural group (133) ]
CHEMISTRY 
RRUFF ID: R130070.2
Sample Description: Microprobe Fragment
Measured Chemistry: Sb3+4.87(Nb1.33Ta1.28Ti0.18W1.26)Σ=4.05O18
INFRARED SPECTRUM (Attenuated Total Reflectance) 
RRUFF ID: R130070
Sample Description: IR Sample
Instrument settings: Equipment not described
Resolution:
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Infrared Data (RAW) View Graph
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POWDER DIFFRACTION 
RRUFF ID: R130070.9
Sample Description: Single crystal, powder profile is calculated
Cell Refinement Output: a: 54.116(5)Å    b: 4.9143(5)Å    c: 5.5482(5)Å
alpha: 90°    beta: 90.425°    gamma: 90°   Volume: 1475.5(2)Å3    Crystal System: monoclinic
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Calculated diffraction file.

  File Type Information Close
Output file from the Bruker D8 Advance instrument. Includes device headers and XY data.

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DIF File
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REFERENCES for Billwiseite

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 9. New minerals and nomenclature modifications approved in 2011, Mineralogical Magazine, 75, 2535-2540   [view file]

Hawthorne F C, Cooper M A, Ball N A, Abdu Y A, Černý P, Cámara F, Laurs B M (2012) Billwiseite, ideally Sb3+5(Nb,Ta)3WO18, a new oxide mineral species from the Stak Nala Pegmatite, Nanga Parbat - Haramosh Massif, Pakistan: description and crystal structure, The Canadian Mineralogist, 50, 805-814   [view file]

Cámara F, Gatta G D, Uvarova Y, Gagne O C, Belakovskiy D I (2014) New mineral names, American Mineralogist, 99, 1511-1518