Hostname: page-component-77c89778f8-swr86 Total loading time: 0 Render date: 2024-07-16T18:16:25.008Z Has data issue: false hasContentIssue false

Gurimite, Ba3(VO4)2 and hexacelsian, BaAl2Si2O8 – two new minerals from schorlomite-rich paralava of the Hatrurim Complex, Negev Desert, Israel

Published online by Cambridge University Press:  02 January 2018

Irina O. Galuskina*
Affiliation:
Faculty of Earth Sciences, Department of Geochemistry, Mineralogy and Petrography, University of Silesia, Będzińska 60, 41-200 Sosnowiec, Poland
Evgeny V. Galuskin
Affiliation:
Faculty of Earth Sciences, Department of Geochemistry, Mineralogy and Petrography, University of Silesia, Będzińska 60, 41-200 Sosnowiec, Poland
Yevgeny Vapnik
Affiliation:
Department of Geological and Environmental Sciences, Ben-Gurion University of the Negev, POB 653, Beer-Sheva 84105, Israel
Krystian Prusik
Affiliation:
Institute of Materials Science, University of Silesia, 75 Pułku Piechoty 1A, 41-500 Chorzów, Poland
Marta Stasiak
Affiliation:
Faculty of Earth Sciences, Department of Geochemistry, Mineralogy and Petrography, University of Silesia, Będzińska 60, 41-200 Sosnowiec, Poland
Piotr Dzierżanowski
Affiliation:
Institute of Geochemistry, Mineralogy and Petrology, University of Warsaw, al. Żwirki i Wigury 93, 02-089 Warszawa, Poland
Mikhail Murashko
Affiliation:
Saint Petersburg State University, Faculty of Geology, 7-9 Uniwersitetskaya nab., St Petersburg, 199034, Russia

Abstract

Two new barium-bearing minerals: gurimite, Ba3(VO4)2 (IMA2013-032) and hexacelsian, BaAl2Si2O8 (IMA2015-045) were discovered in veins of paralava cutting gehlenite-flamite hornfels located in the Gurim Anticline in the Negev Desert, Israel. Gurimite and hexacelsian occur in oval polymineralic inclusions in paralava and are associated with gehlenite, pseudowollastonite or wollastonite, rankinite, flamite, larnite, schorlomite, andradite, fluorapatite, fluorellestadite, kalsilite, cuspidine, aradite, zadovite and khesinite. Gurimite and hexacelsian form elongate crystals <10 μm thick. The minerals are colourless and transparent with a white streak and vitreous lustre, and have (0001) cleavage, respectively good in gurimite and very good in hexacelsian. Fracture is irregular. Density calculated using empirical formulas gave 5.044 g cm–3 for gurimite and 3.305 g cm–3 for hexacelsian. Mean refractive indexes, 1.945 and 1.561, respectively, were also calculated using the empirical formulas and the Gladstone-Dale relationship. The minerals are uniaxial and nonpleochroic. The following empirical crystal chemical formulae were assigned to holotype gurimite: (Ba2.794K0.092Ca0.084Na0.033Sr0.017)∑3.020(V1.8275+S0.0916+P0.0515+Al0.040Si0.005Fe0.0053+)∑2.017O8,and holotype hexacelsian: (Ba0.911K0.059Ca0.042Na0.010)∑1.022Al1.891Fe0.0723+Si2.034O8. The Raman spectrum of hexacelsian is similar to the one of the synthetic disordered β-BaAl2Si2O8. The Raman spectrum of gurimite is identical to that of synthetic Ba3(VO4)2. The electron back-scattered diffraction (EBSD) pattern of gurimite was fitted to the structure of its synthetic analogue with the cell parameters of R3m, a = 5.784(1),c = 21.132(1) Å, V = 612.2(2) Å3, Z = 3, giving a mean angular deviation = 0.43° (good fit). The Raman spectra of hexacelsian and its EBSD pattern suggest that natural hexacelsian corresponds to disordered synthetic β-hexacelsian P63/mcm, a = 5.2920(4) Å, c = 15.557(2) Å, α = β = 90°, γ = 120°. We suggest that after relatively fast crystallization of the main constituents of the paralava, gurimite, hexacelsian and also other Ba-bearing phases crystallized from residual melt enriched in incompatible elements that filled interstices between crystals of the main constituents.

Type
Research Article
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 2017

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Azdouz, M., Manoun, B., Essehli, R., Azrour, M., Bih, L., Benmokhtar, S., Aďt Hou, A. and Lazor, P. (2010) Crystal chemistry, Rietveld refinements and Raman spectroscopy studies of the new solid solution series: Ba3_xSrx(VO4)2 (0 < x < 3). Journal of Alloys and Compounds, 498, 4251.CrossRefGoogle Scholar
Bentor, Y.K. (editor) (1960) Israel. In: Lexique Stratigraphique International, Asie, Vol. III, (10.2). Centre national de la recherche scientifique, Paris.Google Scholar
Black, M.E. (2014) Fleischer's Glossary of Mineral Species, 2014. The Mineralogical Record Incorporated, Tucson, USA, 434 pp.Google Scholar
Galuskin, E.V., Gfeller, F., Galuskina, I.O., Pakhomova, A., Armbruster, T., Vapnik, Y, Wlodyka, R., Dzierżanowski, P. and Murashko, M. (2015) New minerals with a modular structure derived from hatrurite from the pyrometamorphic Hatrurim Complex. Part II. Zadovite, BaCa6[(SiO4)(PO4)] (PO4)2F and aradite, BaCa6[(SiO4)(VO4)](VO4)2F, from paralavas of the Hatrurim Basin, Negev Desert, Israel. Mineralogical Magazine, 79, 10731087.CrossRefGoogle Scholar
Galuskina, I.O., Galuskin, E.V., Prusik, K., Gazeev, V.M., Pertsev, N.N. and Dzierżanowski, P. (2013) Irinarassite Ca3Sn2SiAl2O12-new garnet from the Upper Chegem Caldera, Northern Caucasus, Kabardino-Balkaria, Russia. Mineralogical Magazine, 77(6), 28572866.CrossRefGoogle Scholar
Galuskina, I.O., Galuskin, E.V., Pakhomova, A.S., Widmer, R., Armbruster, T., Krüger, B., Grew, E.S., Vapnik, Ye., Dzierżanowski, P. and Murashko, M. (2017) Khesinite, Ca4(Mg2Fe310þ)O4(Fe103þSi2)O36, a new rhönite group (sapphirine supergroup) mineral from the Negev Desert, Israel — natural analogue of SFCA phase. European Journal of Mineralogy, 29(1), 101116.CrossRefGoogle Scholar
Gross, S. (1977) The mineralogy of the Hatrurim Formation, Israel. Geological Survey of Israel Bulletin, 70, 180.Google Scholar
Grzechnik, A. and McMillan, P.F. (1997) In situ high pressure Raman spectra of Ba3(VO4)2. Solid State Communications, 8, 569574.CrossRefGoogle Scholar
Kraus, W. and Nolze, G. (1996) POWDER CELL-a program for the representation and manipulation of crystal structures and calculation of resulting X-ray powder patterns. Journal of Applied Crystallography, 29, 301303.CrossRefGoogle Scholar
Kremenovic, A., Norby, P., Dimitrijevic, R. and Dondur, V (1997) Time-temperature resolved synchrotron XRPD study hexacelsian ap polymorph inversion. Solid State Ionics, 101–103, 611618.CrossRefGoogle Scholar
Kremenovic, A., Colomban, Ph., Piriou, B., Massiot and Florian, P. (2003) Structural and spectroscopic characterization of the quenched hexacelsian. Journal of Physics and Chemistry of Solids, 64, 22532268.CrossRefGoogle Scholar
Longo, J.M. and Clavenna, L.R. (1976) Structural inorganic chemistry of the palmierite series Ba, x PbxV2O8 and its applications to catalysis. Chemistry of Solid State Inorganics, 272, 4560.Google Scholar
Müller, W.F. (1977) Phase transitions and associated domains in hexacelsian (BaA12Si2O8). Physics and Chemistry of Minerals, 1, 7182.Google Scholar
Seryotkin, Yu.V., Sokol, E.V and Kokh, S.N. (2012) Natural pseudowollastonite: crystal structure, associated minerals, and geological context. Lithos, 134–135, 7590.CrossRefGoogle Scholar
Sharygin, YY, Vapnik, Y., Sokol, E.V, Kamenetsky, V.S. and Shagam, R. (2006a) Melt inclusions in minerals of schorlomite-rich veins of the Hatrurim Basin, Israel: composition and homogenization temperatures. ACROFII, Program with Abstracts, 189192.Google Scholar
Sharygin, YY, Vapnik, Y., Sokol, E.V and Shagam, R. (2006b) Kalsilite-schorlomite-melilite rocks of Hatrurim Formation — products of pyrogenic alkaline melt crystallization: data on mineralogy and melt inclusions. Abstracts of the All Russian Seminar “Geochemistry of Magmatic Rocks”. http://geo.web.ru/conf/alkaline/2006/index22.html [in Russian].Google Scholar
Smith, J.V. (1953) The crystal structure of paracelsian, BaAl2Si2O8 . Acta Crystallographica, 6, 613620.CrossRefGoogle Scholar
Sokol, E.V., Novikov, I.S., Zateeva, S.N., Sharygin, YY and Vapnik, Ye. (2008) Pyrometamorphic rocks of the spurrite-merwinite facies as indicators of hydrocarbon discharge zones (the Hatrurim Formation, Israel). Doklady Earth Sciences, 420, 608614.CrossRefGoogle Scholar
Susse, P. and Buerger, M.J. (1970) The structure of Ba3 (VO4)2 . Zeitschrift für Kristallographie, 131, 161174.CrossRefGoogle Scholar
Tabira, Y., Withers, R.L., Takéuchi, Y and Marumo, F. (2000) Structured diffuse scattering, displacive fex-ibility and polymorphism in Ba-hexacelsian. Physics and Chemistry of Minerals, 27, 194202.CrossRefGoogle Scholar
Takeuchi, Y, (1958) A detailed investigation of the structure of hexagonal BaAl2Si2O8 with reference to its a-b inversion. Mineralogical Journal, 2, 311332.Google Scholar
Takeuchi, Y and Donnay, G. (1959) The crystal structure of hexagonal CaAl2Si2O8 . Acta Crystallographica, 12, 465470.CrossRefGoogle Scholar
Tissot, R.G., Rodriguez, M.A., Sipola, D.L. and Voigt, J. A. (2001) X-ray powder diffraction study of synthetic palmierite, K2Pb(SO4)2 . Powder Diffraction, 16, 9297.CrossRefGoogle Scholar
Vapnik, Y., Sharygin, V.V., Sokol, E.V. and Shagam, R. (2007) Paralavas in a combustion metamorphic complex:HatrurimBasin,Israel.. Reviewsin Engineering Geology, 18, 121.Google Scholar
Yoshiki, B. and Matsumoto, K. (1951) High-temperature modifcation of barium-feldspar. Journal of the American Ceramic Society, 34, 283286.CrossRefGoogle Scholar
Zhuravlev, V.D., Velikodnyi, Y.A., Vinogradova-Zhabrova, A.S., Tyutyunnik, A.P. and Zubkov, V.G. (2008) Ba3(VO4)2-K2Ba(MoO4)2andPb3(VO4)2-K2Pb(MoO4)2 systems. Russian Journal of Inorganic Chemistry, 10, 16321634.CrossRefGoogle Scholar