Argesite R130008

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Record 261 of 4216  

Name: Argesite
RRUFF ID: R130008
Ideal Chemistry: (NH4)7Bi3Cl16
Locality: La Fossa crater, Vulcano, Aeolian Islands, Sicily, Italy
Source: Francesco Demartin
Owner: Francesco Demartin
Description: Pale-yellow crystals up to 0.15 mm in length, associated with bismuthinite, adranosite, brontesite, demicheleite-(Br), demicheleite-(Cl), and panichiite. Data from Demartin et al (2012).
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) ]
CHEMISTRY 
RRUFF ID: R130008.2
Sample Description: Microprobe Sample
Measured Chemistry: [(NH4)6.29K0.91Tl0.06]Σ=7.26Bi2.93(Cl13.33Br2.37I0.11)Σ=15.81
INFRARED SPECTRUM (Attenuated Total Reflectance) 
RRUFF ID: R130008
Sample Description: Powder
Instrument settings: Jasco IRT-3000 spectrometer
Resolution:
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Infrared Data (Processed)
RRUFF File
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POWDER DIFFRACTION 
RRUFF ID: R130008.9
Sample Description: Single crystal, powder profile is calculated
Cell Refinement Output: a: 13.093(1)Å    b: 13.093(1)Å    c: 102.682(9)Å
alpha: 90°    beta: 90°    gamma: 120°   Volume: 15245Å3    Crystal System: hexagonal
  File Type Information Close
Output file from the Bruker D8 Advance instrument. Includes device headers and XY data.

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X-ray Data (XY - Processed)
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REFERENCES for Argesite

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 11. New minerals and nomenclature modifications approved in 2011, Mineralogical Magazine, 75, 2887-2893   [view file]

Demartin F, Campostrini I, Castellano C, Gramaccioli C M (2012) Argesite, (NH4)7Bi3Cl16, a new mineral from La Fossa Crater, Vulcano, Aeolian Islands, Italy: A first example of the [Bi2Cl10]4- anion, American Mineralogist, 97, 1446-1451   [view file]