Ammonioalunite R060873

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Record 1 of 44  


Name: Ammonioalunite
RRUFF ID: R060873
Ideal Chemistry: (NH4)Al3(SO4)2(OH)6
Locality: Schöller mine, Kladno, Central Bohemia Region, Bohemia, Czech Republic
Source: Michael Scott S101298 [view label]
Owner: RRUFF
Description: Tan colored fine-grained consolidated fragments
Status: The identification of this mineral has been made only by X-ray diffraction.
Mineral Groups: [ alunite (44) ] [ Alunite (19) ]
CHEMISTRY 
RRUFF ID: R060873.2
Sample Description: Microprobe Fragment
RAMAN SPECTRUM 
RRUFF ID:
Sample Description: Unoriented sample
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BROAD SCAN WITH SPECTRAL ARTIFACTS
RRUFF ID: R060873
Wavelength:
Sample Description: Unoriented sample
Instrument settings: Thermo Almega XR 532nm @ 65% of 150mW
POWDER DIFFRACTION 
RRUFF ID: R060873.1
Sample Description: powder
Cell Refinement Output: a: 7.012(2)Å    b: 7.012(2)Å    c: 17.826(5)Å
alpha: 90°    beta: 90°    gamma: 120°   Volume: 759.0(4)Å3    Crystal System: hexagonal
  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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Output file from the Bruker D8 Advance instrument. Includes device headers and XY data.

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REFERENCES for Ammonioalunite

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]

Altaner S P, Fitzpatrick J J, Krohn M D, Bethke P M, Hayba D O, Goss J A, Brown Z A (1988) Ammonium in alunites, American Mineralogist, 73, 145-152   [view file]

Jambor J L (1999) Nomenclature of the alunite supergroup, The Canadian Mineralogist, 37, 1323-1341   [view file]

Bayliss P, Kolitsch U, Nickel E H, Pring A (2010) Alunite supergroup: recommended nomenclature, Mineralogical Magazine, 74, 919-927   [view file]