Ammoniomagnesiovoltaite R130079

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Record 96 of 2398  


Name: Ammoniomagnesiovoltaite
RRUFF ID: R130079
Ideal Chemistry: (NH4)2Mg5Fe3+3Al(SO4)12·18H2O
Locality: Pécs-Vasas, Mecsek Mountains, South Hungary
Source: Sándor Szakall
Owner: Herman Ottó Museum (Miskolc, Hungary)
Description: Translucent, pale yellow to yellowish brown crusts. Closely associated with tschermigite, sabieite, kieserite, pickeringite, and hexahydrite. Data from Szakall et al (2012)
Status: The identification of this mineral has been confirmed by X-ray diffraction and chemical analysis
Mineral Group: [ Voltaite (3) ]
CHEMISTRY 
RRUFF ID: R130079.2
Sample Description: Microprobe Fragment
Measured Chemistry: [(NH4)2.18K0.02]Σ=2.20(Mg3.19Fe2+1.51Mn0.30)Σ=5.00(Fe3+2.81Al1.19)Σ=4.00S10.87O44.70·18H2O
INFRARED SPECTRUM (Attenuated Total Reflectance) 
RRUFF ID: R130079
Sample Description: IR Sample
Instrument settings: Thermo Nicolet Avatar 320 FT-IR spectrometer
Resolution:
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Infrared Data (RAW) View Graph
RRUFF File
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POWDER DIFFRACTION 
RRUFF ID: R130079.9
Sample Description: Powder
Cell Refinement Output: a: 27.275Å    b: 27.275Å    c: 27.275Å
alpha: 90°    beta: 90°    gamma: 90°   Volume: 20291Å3    Crystal System: cubic
  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 Ammoniomagnesiovoltaite

Williams P A, Hatert F, Pasero M (2009) New minerals approved in 2009, in International Mineralogical Association 1-34   [view file]

Szakáll S, Sajó I, Fehér B, Bigi S, (2012) Ammoniomagnesiovoltaite, a new voltaite-related mineral species from Pécs-Vasas, Hungary, The Canadian Mineralogist, 50, 65-72   [view file]