Uranophane-α R050380

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Name: Uranophane-α
RRUFF ID: R050380
Ideal Chemistry: Ca(UO2)2(SiO3OH)2·5H2O
Locality: Grafton County, New Hampshire, USA
Source: University of Arizona Mineral Museum 5973 [view label]
Owner: RRUFF
Description: Orange massive coating
Status: The identification of this mineral has been confirmed by X-ray diffraction and chemical analysis
Quick search: [ All Uranophane-α samples (3) ]
CHEMISTRY 
RRUFF ID: R050380.2
Sample Description: Microprobe fragment
Measured Chemistry: (Ca0.97Pb0.03)(U1.00O2)2(Si1.00O3OH)2ยท5H2O
RAMAN SPECTRUM 
RRUFF ID:
Sample Description: Unoriented sample
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BROAD SCAN WITH SPECTRAL ARTIFACTS
RRUFF ID: R050380
Wavelength:
Sample Description: Unoriented sample
Instrument settings: Thermo Almega XR 532nm @ 100% of 150mW
POWDER DIFFRACTION 
RRUFF ID: R050380.1
Sample Description: Powder
Cell Refinement Output: a: 15.971(5)Å    b: 7.020(1)Å    c: 6.670(2)Å
alpha: 90.°    beta: 97.15(2)°    gamma: 90.°   Volume: 742.1(3)Å3    Crystal System: monoclinic
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Output file from the Bruker D8 Advance instrument. Includes device headers and XY data.

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REFERENCES for Uranophane-α

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]

Websky M (1853) Ueber die geognostischen Verhältnisse der Erzlagerstätten von Kupferberg und Rudelstadt in Schlesien, Zeitschrift der Deutschen Geologischen Gesellschaft, 5, 373-438   [view file]

Novácek R (1935) Study on some secondary uranium minerals (in English), Vestniku Královské Ceské Spolecnosti Nauk, 7, 1-36   [view file]

Steinocher V, Novácek R (1939) On β-uranotile, American Mineralogist, 24, 324-338   [view file]

Stohl F V, Smith D K (1981) The crystal chemistry of the uranyl silicate minerals, American Mineralogist, 66, 610-625   [view file]

Ginderow D (1988) Structure de l´uranophane alpha, Ca(UO2)2(SiO3OH)2·5H2O, Acta Crystallographica, C44, 421-424

Jambor J L, Puziewicz J (1989) New mineral names, American Mineralogist, 74, 500-505   [view file]

Barinova A V, Rastsvetaeva R K, Sidorenko G A, Pushcharovskii D Y (2001) Crystal structure of high-symmetry α-uranophane, Doklady Chemistry, 378, 122-124

Jambor J L, Roberts A C (2002) New mineral names, American Mineralogist, 87, 765-768   [view file]

Frost R L, Cejka J, Weier M L, Martens W (2006) Molecular structure of the uranyl silicates - a Raman spectroscopic study, Journal of Raman Spectroscopy, 37, 538-551

Plášil J, Sejkora J, Cejka J, Škoda R, Goliáš V (2009) Supergene mineralization of the Medvedín uranium deposit, Krkonoše Mountains, Czech Republic, Journal of Geosciences, 54, 15-56

Plášil J (2018) Structural complexity of uranophane and uranophane-β: implications for their formation and occurrence, European Journal of Mineralogy, 30, 253-257