Voltaite R060237



Name: Voltaite
RRUFF ID: R060237
Ideal Chemistry: K2Fe2+5Fe3+3Al(SO4)12·18H2O
Locality: Dexter no. 7 mine, Calf Mesa, San Rafael Swell, Emery County, Utah, USA
Source: University of Arizona Mineral Museum 15636
Owner: RRUFF
Description: Dark blue modified octahedra associated with romerite and coquimbite
Status: The identification of this mineral has been confirmed by single-crystal X-ray diffraction.
CHEMISTRY 
RRUFF ID: R060237.2
Sample Description: Microprobe Fragment
RAMAN SPECTRUM 
RRUFF ID:
Sample Description: Unoriented sample
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BROAD SCAN WITH SPECTRAL ARTIFACTS
RRUFF ID: R060237
Wavelength:
Sample Description: Unoriented sample
Instrument settings: Thermo Almega XR 532nm @ 100% of 150mW
POWDER DIFFRACTION 
RRUFF ID: R060237.9
Sample Description: Single crystal, powder profile is calculated
Cell Refinement Output: a: 27.189(2)Å    b: 27.189(2)Å    c: 27.189(2)Å
alpha: 90°    beta: 90°    gamma: 90°   Volume: 20099(4)    Crystal System: cubic
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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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REFERENCES for Voltaite

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]

Mereiter K (1972) Die kristallstruktur des voltaits, K2Fe52+Fe33+Al[SO4]12·18H2O, Tschermaks Mineralogische und Petrographische Mitteilungen, 18, 185-202