Argandite R130044

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Record 243 of 4034  

Name: Argandite
RRUFF ID: R130044
Ideal Chemistry: Mn7(VO4)2(OH)8
Locality: Pipji glacier (Pipjigletscher) in the Turtmann valley, Central Alps, Switzerland
Source: Joel Brugger
Owner: Joel Brugger
Description: Transparent, orange in color with a pale orange streak and vitreous luster. Associated with the V-minerals pyrobelonite, reppiaite, and an unknown silico-vanadate. Data from Brugger et al (2011)
Status: The identification of this mineral has been confirmed by X-ray diffraction and chemical analysis
Mineral Group: [ Allactite (3) ]
CHEMISTRY 
RRUFF ID: R130044.2
Sample Description: Microprobe Fragment
Measured Chemistry: (Mn6.54Mg0.38Ni0.04Ca0.02Zn0.01Sr0.01)Σ=7(V1.46As0.54)Σ=2O8(OH)8
INFRARED SPECTRUM (Attenuated Total Reflectance) 
RRUFF ID: R130044
Sample Description: IR Sample
Instrument settings: Nicolet 5700 FTIR spectrometer
Resolution:
X Min:    X Max:    X Sort:
POWDER DIFFRACTION 
RRUFF ID: R130044.9
Sample Description: Single crystal, powder profile is calculated
Cell Refinement Output: a: 5.5038(2)Å    b: 12.2665(5)Å    c: 10.1055(5)Å
alpha: 90°    beta: 95.559(4)°    gamma: 90°   Volume: 679.04(5)Å3    Crystal System: monoclinic
  File Type Information Close
Calculated diffraction file.

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

X Min:    X Max:    X Sort:
REFERENCES for Argandite

American Mineralogist Crystal Structure Database Record: [view record]

Williams P A, Hatert F, Pasero M, Mills S J (2010) IMA Commission on new minerals, nomenclature and classification (CNMNC) Newsletter 4. New minerals and nomenclature modification approved in 2010, Mineralogical Magazine, 74, 797-800   [view file]

Brugger J, Elliott P, Meisser N, Ansermet S (2011) Argandite, Mn7(VO4)2(OH)8, the V analogue of allactite from the metamorphosed Mn ores at Pipji, Turtmann Valley, Switzerland, American Mineralogist, 96, 1894-1900   [view file]