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Chinleite-(Y), NaY(SO4)2·H2O, a new rare-earth sulfate mineral structurally related to bassanite

Published online by Cambridge University Press:  02 January 2018

Anthony R. Kampf ,
Barbara P. Nash  and
Joe Marty
Anthony R. Kampf*
Affiliation:
Mineral Sciences Department, Natural History Museum of Los Angeles County, 900 Exposition Boulevard, Los Angeles, CA 90007, USA
Barbara P. Nash
Affiliation:
Department of Geology and Geophysics, University of Utah, Salt Lake City, Utah 84112, USA
Joe Marty
Affiliation:
5199 East Silver Oak Road, Salt Lake City, UT 84108, USA
*
*E-mail: akampf@nhm.org
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Abstract

The new mineral chinleite-(Y) (IMA2016-017), NaY(SO4)2·H2O, was found in the Blue Lizard mine, San Juan County, Utah, USA, where it occurs as a secondary alteration phase. Chinleite-(Y) crystals are thin hexagonal {100} prisms (up to 0.3 mm long) with pyramidal terminations consisting of the forms {101} and {011}. Prisms are typically intergrown in divergent sprays, bow-tie aggregates or subparallel intergrowths. Crystals are colourless and transparent with a vitreous lustre. The streak is white and the mineral is nonfluorescent. The Mohs hardness is between 2½ and 3. Crystals are brittle with at least one good cleavage parallel to [001], probably {100}, and have splintery fracture. The mineral is slowly soluble in H2O at room temperature. The calculated density is 3.385 g cm–3. The mineralis optically uniaxial (+), with ω = 1.565(1) and ε = 1.603(1) (white light). Electron microprobe analyses yielded the empirical formula (Na0.507Ca0.285Y0.176)∑0.968(Y0.724Dy0.110Er0.053Gd0.037Ho0.021Yb0.013Nd0.014Eu0.005Sm0.008Ce0.010Pr0.003La0.002)∑1.000(SO4)2·H1.401O.The eight strongest powder X-ray diffraction lines are [dobs Å(I)(hkl)]: 6.01(59)(100), 5.43(63)(011), 3.457(46)(110), 3.010(100)(200), 2.826(95)(014), 2.1365(39)(006,122), 1.8493(67)(214) and 1.6901(28)(125,034). Chinleite-(Y) is trigonal, P3221,a = 6.890(2), c = 12.767(2) Å, V = 524.9(3) Å3 and Z = 3. The structure of chinleite-(Y) (R1 = 0.0444 for 303 Fo > 4σF), a three-dimensional framework, consisting of SO4 groups, irregular NaO8 polyhedra and YO9 distorted tricapped trigonal prisms, is similar to the structure of bassanite.

Keywords

chinleite-(Y)new mineralrare-earth sulfatecrystal structurebassaniteBlue Lizard mineUtahUSA
Type
Research Article
Information
Mineralogical Magazine , Volume 81 , Issue 4 , August 2017 , pp. 909 - 916
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 2017

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References

Atkin, D., Basham, I.R. and Bowles, J.F.W. (1983) Tristramite, a new calcium uranium phosphate of the rhabdophane group. Mineralogical Magazine, 47, 393–396.CrossRefGoogle Scholar
Ballirano, P., Maras, A., Meloni, S. and Caminiti, R. (2001) The monoclinic I2 structure of bassanite, calcium sulphate hemihydrate. European Journal of Mineralogy, 13, 985–993.CrossRefGoogle Scholar
Brown, I.D. and Altermatt, D. (1985) Bond-valence parameters from a systematic analysis of the inorganic crystal structure database. Acta Crystallographica, B41, 244–247.CrossRefGoogle Scholar
Burla, M.C., Caliandro, R., Camalli, M., Carrozzini, B., Cascarano, G.L., Giacovazzo, C., Mallamo, M., Mazzone, A., Polidori, G. and Spagna, R. (2012) SIR2011: a new package for crystal structure determination and refinement. Journal of Applied Crystallography, 45, 357–361.CrossRefGoogle Scholar
Chenoweth, W.L. (1993) The Geology and Production History of the Uranium Deposits in the White Canyon sMining District, San Juan County, Utah. Utah Geological Survey Miscellaneous Publication, 93-3.Google Scholar
Ferraris, G. and Ivaldi, G. (1988) Bond valence vs. bond length in OO hydrogen bonds. A cta Crystallographica, B44, 341–344.Google Scholar
Higashi, T (2001) ABSCOR. Rigaku Corporation, Tokyo.Google Scholar
Kampf, A.R., Plášil, J., Čejka, J., Marty, J., Škoda, R and Lapčák, L. (2017a) Alwilkinsite-(Y), a new rare-earth uranyl sulfate mineral from the Blue Lizard mine, San Juan County, Utah, USA. Mineralogical Magazine, 81, 895–907.CrossRefGoogle Scholar
Kampf, A.R., Plášil, J., Kasatkin, A.V., Marty, J. and Čejka, J. (2017b) Klaprothite, péligotite and ottohah-nite, three new sodium uranyl sulfate minerals with bidentate UO7-SO4 linkages from the Blue Lizard mine, San Juan County, Utah, USA. Mineralogical Magazine, 81, 753–780.CrossRefGoogle Scholar
Krivovichev, S.V. (2012) Derivation of bond-valence parameters for some cation-oxygen pairs on the basis of empirical relationships between ro an. b. Zeitschrift für Kristallographie, 227, 575–579.CrossRefGoogle Scholar
Mandarino, J.A. (2007) The Gladstone-Dale compatibility of minerals and its use in selecting mineral species for further study. The Canadian Mineralogist, 45, 1307–1324.CrossRefGoogle Scholar
Perles, J., Fortes-Revilla, C., Enrique Gutiérrez-Puebla, E., Iglesias, M., Monge, M.Á., Ruiz-Valero, C. and Snejko, N. (2005) Synthesis, structure, and catalytic properties of rare-earth ternary sulfates. Chemistry of Materials, 17, 2701–2706.CrossRefGoogle Scholar
Plášil, J., Kampf, A.R., Kasatkin, A.V. and Marty, J. (2014) Bluelizardite, Na7(UO2)(SO4)4Cl(H2O)2, a new uranyl sulfate mineral from the Blue Lizard mine, San Juan County, Utah, USA. Journal of Geosciences, 59, 145–158.CrossRefGoogle Scholar
Pouchou, J.-L. and Pichoir, F. (1991) Quantitative analysis of homogeneous or stratified microvolumes applying the model “PAP.” Pp. 31–75 in: Electron Probe Quantitation (Heinrich, K.F.J. and Newbury, D.E., editors). Plenum Press, New York.CrossRefGoogle Scholar
Sheldrick, G.M. (2008) A short history o. SHELX. Acta Crystallographica, A64, 112–122.Google Scholar
Wood, R.M. and Palenik, G.J. (1999) Bond valence sums in coordination chemistry. Sodium-oxygen complexes. Inorganic Chemistry, 38, 3926–3930.CrossRefGoogle Scholar