Britvinite R070639



Name: Britvinite
RRUFF ID: R070639
Ideal Chemistry: Pb14Mg9(Si10O28)(BO3)4(CO3)2(OH)12F2
Locality: Kombat mine, Kombat, Grootfontein District, Otjozondjupa Region, Namibia
Source: William W. Pinch [view label]
Owner: RRUFF
Description: Colorless tabular crystals, associated with barite and red hematophanite R070638
Status: The identification of this mineral has been confirmed by single-crystal X-ray diffraction.
Mineral Group: [ Molybdophyllite (2) ]
CHEMISTRY 
RRUFF ID: R070639.2
Sample Description: Microprobe Fragment
RAMAN SPECTRUM 
RRUFF ID:
Sample Description: Unoriented sample
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BROAD SCAN WITH SPECTRAL ARTIFACTS
RRUFF ID: R070639
Wavelength:
Sample Description: Unoriented sample
Instrument settings: Thermo Almega XR 532nm @ 100% of 150mW
POWDER DIFFRACTION 
RRUFF ID: R070639.9
Sample Description: Single crystal, powder profile is calculated
Cell Refinement Output: a: 9.343(8)Å    b: 9.334(5)Å    c: 18.96(2)Å
alpha: 80.43(3)°    beta: 75.58(3)°    gamma: 60.03(3)°   Volume: 1385(1)Å3    Crystal System: triclinic
  File Type Information Close
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 Britvinite

American Mineralogist Crystal Structure Database Record: [view record]

Chukanov N V, Yakubovich O V, Pekov I V, Belakovsky D I, Massa W (2007) Britvinite, Pb15Mg9(Si10O28)(BO3)4(CO3)2(OH)12O2 - a new mineral from Långban, Sweden, Zapiski Rossiiskogo Mineralogicheskogo Obshchetstva, 136, issue 6 18-25   [view file]

Yakubovich O V, Massa W, Chukanov N V (2008) Crystal structure of britvinite [Pb7(OH)3F(BO3)2(CO3)][Mg4.5(OH)3(Si5O14)]: A new layered silicate with an original type of silicon-oxygen networks, Crystallography Reports, 53, 206-215

Kolitsch U, Merlino S, Holtstam D (2012) Molybdophyllite: crystal chemistry, crystal structure, OD character and modular relationships with britvinite, Mineralogical Magazine, 76, 493-512   [view file]