Hostname: page-component-848d4c4894-wg55d Total loading time: 0 Render date: 2024-05-08T02:46:57.620Z Has data issue: false hasContentIssue false
  • English
  • Français

Redefinition of satimolite

Published online by Cambridge University Press:  28 February 2018

Igor V. Pekov ,
Natalia V. Zubkova ,
Dmitry A. Ksenofontov ,
Nikita V. Chukanov ,
Vasiliy O. Yapaskurt ,
Oksana V. Korotchenkova ,
Ilya I. Chaikovskiy ,
Vladimir M. Bocharov ,
Sergey N. Britvin  and
Dmitry Yu. Pushcharovsky
Igor V. Pekov*
Affiliation:
Faculty of Geology, Moscow State University, Vorobievy Gory, 119991 Moscow, Russia
Natalia V. Zubkova
Affiliation:
Faculty of Geology, Moscow State University, Vorobievy Gory, 119991 Moscow, Russia
Dmitry A. Ksenofontov
Affiliation:
Faculty of Geology, Moscow State University, Vorobievy Gory, 119991 Moscow, Russia
Nikita V. Chukanov
Affiliation:
Institute of Problems of Chemical Physics, Russian Academy of Sciences, 142432 Chernogolovka, Moscow region, Russia
Vasiliy O. Yapaskurt
Affiliation:
Faculty of Geology, Moscow State University, Vorobievy Gory, 119991 Moscow, Russia
Oksana V. Korotchenkova
Affiliation:
Mining Institute, Ural Branch of the Russian Academy of Sciences, Sibirskaya str., 78a, 614007 Perm, Russia
Ilya I. Chaikovskiy
Affiliation:
Mining Institute, Ural Branch of the Russian Academy of Sciences, Sibirskaya str., 78a, 614007 Perm, Russia
Vladimir M. Bocharov
Affiliation:
Kazakh National Research Technical University, Satpaev str., 22a, 050013 Almaty, Kazakhstan
Sergey N. Britvin
Affiliation:
Department of Crystallography, St Petersburg State University, Universitetskaya Nab. 7/9, 199034 St Petersburg, Russia
Dmitry Yu. Pushcharovsky
Affiliation:
Faculty of Geology, Moscow State University, Vorobievy Gory, 119991 Moscow, Russia
*
*E-mail: igorpekov@mail.ru
Get access Rights & Permissions [Opens in a new window]

Abstract

The borate mineral satimolite, which was first described in 1969 and remained poorly-studied until now, has been re-investigated (electron microprobe analysis, single-crystal and powder X-ray diffraction studies, crystal-structure determination, infrared spectroscopy) and redefined based on the novel data obtained for the holotype material from the Satimola salt dome and a recently found sample from the Chelkar salt dome, both in North Caspian Region, Western Kazakhstan. The revised idealized formula of satimolite is KNa2(Al5Mg2)[B12O18(OH)12](OH)6Cl4·4H2O (Z = 3). The mineral is trigonal, space group R$\bar{3}$m, unit-cell parameters are: a = 15.1431(8), c = 14.4558(14) Å and V = 2870.8(4) Å3 (Satimola) and a = 15.1406(4), c = 14.3794(9) Å and V = 2854.7(2) Å3 (Chelkar). The crystal system and unit-cell parameters are quite different from those reported previously. The crystal structure of the sample from Chelkar was solved based on single-crystal data (direct methods, R = 0.0814) and the structure of the holotype from Satimola was refined on a powder sample by the Rietveld method (Rp = 0.0563, Rwp = 0.0761 and Rall = 0.0667). The structure of satimolite is unique for minerals. It contains 12-membered borate rings [B12O18(OH)12] in which BO3 triangles alternate with BO2(OH)2 tetrahedra sharing common vertices, and octahedral clusters [M7O6(OH)18] with M = Al5Mg2 in the ideal case, with sharing of corners between rings and clusters to form a three-dimensional heteropolyhedral framework. Each borate ring is connected with six octahedral clusters: three under the ring and three over the ring. Large ellipsoidal cages in the framework host Na and K cations, Cl anions and H2O molecules.

Keywords

satimoliteborate mineralaluminium chloroboratecrystal structureevaporite depositSatimola salt domeChelkar salt domeWestern Kazakhstan
Type
Article
Information
Mineralogical Magazine , Volume 82 , Issue 5 , October 2018 , pp. 1033 - 1047
Copyright
Copyright © Mineralogical Society of Great Britain and Ireland 2018 

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.)

Footnotes

Associate Editor: Andrew Christy

†

Deceased

References

Agilent Technologies (2014) CrysAlisPro Software system, version 1.171.37.34. Agilent Technologies UK Ltd, Oxford, UK.Google Scholar
Bocharov, V.M., Khalturina, I.I., Avrova, N.P. and Shipovalov, Yu.V. (1969) A new mineral satimolite – hydrous chlorine-bearing borate of aluminium and alkalis. New Data on Minerals of USSR (Proceedings of the Fersman Mineralogical Museum), 19, 121–126 [in Russian].Google Scholar
Brese, N.E. and O`Keeffe, M. (1991) Bond-valence parameters for solids. Acta Crystallographica B, 47, 192–197.Google Scholar
Burns, P.C., Grice, J.D. and Hawthorne, F.C. (1995) Borate minerals. I. Polyhedral clusters and fundamental building blocks. Canadian Mineralogist, 33, 1131–1151.Google Scholar
Gao, W., Wang, Y., Li, G., Liao, F., You, L. and Lin, J. (2008) Synthesis and structure of an aluminum borate chloride consisting of 12-membered borate rings and aluminate clusters. Inorganic Chemistry, 47, 7080–7082.Google Scholar
Chen, H., Ju, J., Meng, Q., Su, J., Lin, C., Zhou, Z., Li, G., Wang, W., Gao, W., Zeng, C., Tang, C., Lin, J., Yang, T. and Sun, J. (2015) PKU-3: An HCl-inclusive aluminoborate for strecker reaction solved by combining RED and PXRD. Journal of the American Chemical Society, 137(22), 7047–7050.Google Scholar
Grice, J.D., Burns, P.C. and Hawthorne, F.C. (1994) Determination of the megastructures of the borate polymorphs pringleite and ruitenbergite. Canadian Mineralogist, 32, 1–14.Google Scholar
Grice, J.D., Gault, R.A. and Van Velthuizen, J. (1996) Penobsquisite: a new borate mineral with a complex framework structure. Canadian Mineralogist, 34, 657–665.Google Scholar
Grice, J.D., Burns, P.C. and Hawthorne, F.C. (1997) Brianroulstonite: a new borate mineral with a sheet structure. Canadian Mineralogist, 35, 751–758.Google Scholar
Grice, J.D., Burns, P.C. and Hawthorne, F.C. (1999) Borate minerals. II. A hierarchy of structures based upon the borate fundamental building block. Canadian Mineralogist, 37, 731–762.Google Scholar
Ju, J., Yang, T., Li, G., Liao, F., Wang, Y., You, L. and Lin, J. (2004) PKU-5: An aluminoborate with novel octahedral framework topology. Chemistry – A European Journal, 10, 3901–3906.Google Scholar
Korotchenkova, O.V. and Chaikovskiy, I.I. (2016) Boron minerals of the Chelkar deposit. Problems of Mineralogy, Petrography and Metallogeny (P.N. Chirvinsky Scientific Conference, Perm University), 19, 55–65 [in Russian].Google Scholar
Mandarino, J.A. (1981) The Gladstone-Dale relationship. Part IV. The compatibility concept and its application. Canadian Mineralogist, 14, 498–502.Google Scholar
Ostrovskaya, I.V. (1969) On the formula of a new mineral satimolite. New Data on Minerals of USSR (Proceedings of the Fersman Mineralogical Museum), 19, 202–205 [in Russian].Google Scholar
Petříček, V., Dušek, M. and Palatinus, L. (2006) Jana2006. Structure Determination Software Programs. Institute of Physics, Praha, Czech Republic.Google Scholar
Sheldrick, G.M. (2008) A short history of SHELX. Acta Crystallographica, A64, 112–122.Google Scholar
Yang, T., Ju, J., Li, G., Liao, F., Zou, X., Deng, F., Chen, L., Su, J., Wang, Y. and Lin, J. (2007) Square-pyramidal/triangular framework oxide: synthesis and structure of PKU-6. Inorganic Chemistry, 46, 4772–4774.Google Scholar
Supplementary material: File

Pekov et al. supplementary material

Supplementary data

Download Pekov et al. supplementary material(File)
File 89.4 KB