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Armangite R100041

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Name: Armangite
RRUFF ID: R100041
Ideal Chemistry: Mn2+26[As3+6(OH)4O14][As3+6O18]2(CO3)
Locality: Langban, Filipstad, Varmland, Sweden
Source: William W. Pinch [view label]
Owner: RRUFF
Description: Elongated prismatic transparent brown, associated with green magnussonite R100027, and white nadorite
Status: The identification of this mineral is confirmed by single-crystal X-ray diffraction and chemical analysis.
Mineral Group: [ Not in a structural group (133) ]
Quick search: [ All Armangite samples (2) ]
CHEMISTRY 
RRUFF ID: R100041.2
Sample Description: Microprobe Fragment
Measured Chemistry: (Mn25.07Fe0.26Ca0.09)As18.38O50(CO3)(OH)4
Microprobe Data File: [ Download Excel File ]
RAMAN SPECTRUM 
RRUFF ID:
Sample Description: Unoriented Raman on the primary sample
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BROAD SCAN WITH SPECTRAL ARTIFACTS
RRUFF ID: R100041
Wavelength:
Sample Description: Unoriented Raman on the primary sample
Instrument settings: Thermo Almega XR 532nm @ 100% of 150mW
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Raman Data (RAW) View Graph
RRUFF File
POWDER DIFFRACTION 
RRUFF ID: R100041.9
Sample Description: Single crystal, powder profile is calculated
Cell Refinement Output: a: 13.4962(7)Å    b: 13.4962(7)Å    c: 8.8797(6)Å
alpha: 90°    beta: 90°    gamma: 120°   Volume: 1400.7(1)Å3    Crystal System: hexagonal
  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.

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DIF File
X-ray Data (XY - RAW) View Graph
RRUFF File
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REFERENCES for Armangite

American Mineralogist Crystal Structure Database Record: [view record]

Anthony J W, Bideaux R A, Bladh K W, and Nichols M C (1990) Handbook of Mineralogy, Mineral Data Publishing, Tucson Arizona, USA, by permission of the Mineralogical Society of America. [view file]

Aminoff G, Mauzelius R (1920) Armangite, a new arsenite from Långbanshyttan, Geologiska Föreningens i Stockholm Förhandlingar, 42, 301-309   [view file]

Wherry E T, Gordon S G, Foshag W F (1921) New minerals, American Mineralogist, 6, 63-68   [view file]

Welin E (1968) Notes on the mineralogy of Sweden 6. X-ray powder data for minerals from Långban and the related mineral deposits of Central Sweden, Arkiv för Mineralogi och Geologi, 4, 499-541

Moore P B, Araki T (1979) Armangite, Mn2+26[As3+6(OH)4O14][As3+6O18]2[CO3], a fluorite derivative structure, American Mineralogist, 64, 748-757   [view file]