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The mineralogy of the historical Mochalin Log REE deposit, South Urals, Russia. Part IV. Alexkuznetsovite-(La), La2Mn(CO3)(Si2O7), alexkuznetsovite-(Ce), Ce2Mn(CO3)(Si2O7) and biraite-(La), La2Fe2+(CO3)(Si2O7), three new isostructural minerals and a definition of the biraite group

Published online by Cambridge University Press:  03 August 2021

Anatoly V. Kasatkin Open the ORCID record for Anatoly V. Kasatkin [Opens in a new window] ,
Natalia V. Zubkova ,
Igor V. Pekov ,
Nikita V. Chukanov ,
Radek Škoda ,
Atali A. Agakhanov ,
Dmitriy I. Belakovskiy ,
Sergey N. Britvin  and
Dmitry Yu. Pushcharovsky
Anatoly V. Kasatkin*
Affiliation:
Fersman Mineralogical Museum of the Russian Academy of Sciences, Leninsky Prospekt 18-2, 119071Moscow, Russia
Natalia V. Zubkova
Affiliation:
Faculty of Geology, Moscow State University, Vorobievy Gory, 119991Moscow, Russia
Igor V. Pekov
Affiliation:
Faculty of Geology, Moscow State University, Vorobievy Gory, 119991Moscow, Russia Vernadsky Institute of Geochemistry and Analytical Chemistry, Russian Academy of Sciences, Kosygina str. 19, 119991Moscow, Russia
Nikita V. Chukanov
Affiliation:
Institute of Problems of Chemical Physics, Russian Academy of Sciences, 142432Chernogolovka, Moscow region, Russia
Radek Škoda
Affiliation:
Department of Geological Sciences, Faculty of Science, Masaryk University, Kotlářská 2, 611 37, Brno, Czech Republic
Atali A. Agakhanov
Affiliation:
Fersman Mineralogical Museum of the Russian Academy of Sciences, Leninsky Prospekt 18-2, 119071Moscow, Russia
Dmitriy I. Belakovskiy
Affiliation:
Fersman Mineralogical Museum of the Russian Academy of Sciences, Leninsky Prospekt 18-2, 119071Moscow, Russia
Sergey N. Britvin
Affiliation:
Institute of Earth Sciences, St Petersburg State University, University Embankment 7/9, 199034 St Petersburg, Russia
Dmitry Yu. Pushcharovsky
Affiliation:
Faculty of Geology, Moscow State University, Vorobievy Gory, 119991Moscow, Russia
*
*Author for correspondence: Anatoly V. Kasatkin, Email: [email protected]
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Abstract

Three new isostructural minerals, alexkuznetsovite-(La), ideally La2Mn(CO3)(Si2O7), alexkuznetsovite-(Ce) Ce2Mn(CO3)(Si2O7) and biraite-(La) La2Fe2+(CO3)(Si2O7), were discovered in polymineralic nodules from the Mochalin Log REE deposit, South Urals, Russia. The new minerals form anhedral grains up to 0.3 mm × 0.4 mm [alexkuznetsovite-(La)], 0.5 mm × 0.9 mm [alexkuznetsovite-(Ce)] and 0.2 mm × 1.2 mm [biraite-(La)] embedded in granular aggregates consisting of different REE minerals [allanite-(Ce)/-(La), bastnäsite-(Ce)/-(La), fluorbritholite-(Ce), perbøeite-(Ce)/-(La), percleveite-(Ce)/-(La) and törnebohmite-(Ce)/-(La)]. All three new species are brown to dark brown, translucent in thin fragments, with white streak, vitreous lustre and Mohs’ hardness of ~5. Dcalc = 4.713 [alexkuznetsovite-(La)], 4.687 [alexkuznetsovite-(Ce)] and 4.682 [biraite-La)] g⋅cm–3. Their empirical formulae, calculated on the basis of 2 Si and 10 O apfu, are: alexkuznetsovite-(La): (La0.98Ce0.89Nd0.10Pr0.05)Σ2.02Mn2+0.50Fe2+0.29Ca0.12Mg0.03(CO3)0.94(HCO3)0.06 (Si2O7); alexkuznetsovite-(Ce): (Ce0.96La0.78Nd0.16Pr0.07)Σ1.97Th0.01Mn2+0.50Fe2+0.33Ca0.14Mg0.02(CO3)0.93(HCO3)0.07(Si2O7); and biraite-(La): (La0.95Ce0.87Nd0.08Pr0.04)Σ1.94Th0.01Ca0.12Fe2+0.44Mn2+0.38Mg0.07(CO3)0.88(HCO3)0.12(Si2O7). The new minerals are monoclinic, P21/c and Z = 4. The unit-cell parameters of alexkuznetsovite-(La)/alexkuznetsovite-(Ce)/biraite-(La) are: a = 6.5642(3)/6.5764(4)/6.5660(10), b = 6.7689(3)/6.7685(4)/6.7666(11), c = 18.7213(10)/18.7493(15)/18.698(3) Å, β = 108.684(6)/108.672(8)/108.952(16)° and V = 788.00(7)/790.66(10)/785.7(2) Å3. The crystal structures are solved from single-crystal X-ray diffraction data; R = 0.0628 [alexkuznetsovite-(La)], 0.0589 [alexkuznetsovite-(Ce)] and 0.1193 [biraite-(La)]. A new biraite group is defined; it includes isostructural biraite-(Ce) and the three new minerals described herein. The rootname alexkuznetsovite is given in honour of the Russian mineral collector Alexey M. Kuznetsov (born 1962) who provided samples in which all three new minerals were found. The Levinson's suffix-modifier -(La) or -(Ce) indicates the predominance of La or Ce among REE in the mineral. Biraite-(La) is named as an analogue of biraite-(Ce) with La prevailing among REE.

Keywords

alexkuznetsovite-(La)alexkuznetsovite-(Ce)biraite-(La)new mineralrare-earth carbonate-silicatecrystal structurebiraite groupMochalin LogSouth Urals
Type
Article
Information
Mineralogical Magazine , Volume 85 , Issue 5 , October 2021 , pp. 772 - 783
Copyright
Copyright © The Author(s), 2021. Published by Cambridge University Press on behalf of The Mineralogical Society of Great Britain and Ireland

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Footnotes

Associate Editor: Mihoko Hoshino

References

Belogub, E.V., Krivovichev, S.V., Pekov, I.V., Kuznetsov, A.M., Yapaskurt, V.O., Kotlyarov, V.A., Chukanov, N.V. and Belakovskiy, D.I. (2015) Nickelpicromerite, K2Ni(SO4)2⋅6H2O, a new picromerite-group mineral from Slyudorudnik, South Urals, Russia. Mineralogy and Petrology, 109, 143–152.10.1007/s00710-014-0360-4CrossRefGoogle Scholar
Britvin, S.N., Dolivo-Dobrovolsky, D.V. and Krzhizhanovskaya, M.G. (2017) Software for processing the X-ray powder diffraction data obtained from the curved image plate detector of Rigaku RAXIS Rapid II diffractometer. Zapiski Rossiiskogo Mineralogicheskogo Obshchestva, 146, 104–107 [in Russian].Google Scholar
Chukanov, N.V. (2014) Infrared Spectra of Mineral Species: Extended Library. Springer-Verlag, Dordrecht, 1716 pp.10.1007/978-94-007-7128-4CrossRefGoogle Scholar
Chukanov, N.V. and Chervonnyi, A.D. (2016) Infrared Spectroscopy of Minerals and Related Compounds. Springer-Verlag, Cham, 1109 pp.10.1007/978-3-319-25349-7CrossRefGoogle Scholar
Gagné, O.C. and Hawthorne, F.C. (2015) Comprehensive derivation of bond-valence parameters for ion pairs involving oxygen. Acta Crystallographica, B71, 562–578.Google Scholar
Jentzsch, P.V., Kampe, B., Ciobotă, V., Rösch, P. and Popp, J. (2013) Inorganic salts in atmospheric particulate matter: Raman spectroscopy as an analytical tool. Spectrochimica Acta A, 115, 697–708.10.1016/j.saa.2013.06.085CrossRefGoogle Scholar
Kagi, H., Nagai, T., Loveday, J.S., Wada, C. and Parise, J.B. (2003): Pressure-induced phase transformation of kalicinite (KHCO3) at 2.8 GPa and local structural changes around hydrogen atoms. American Mineralogist, 88, 1446–1451.10.2138/am-2003-1008CrossRefGoogle Scholar
Kasatkin, A.V., Popov, V.A., Kuznetsov, A.M. and Nestola, F. (2017) Dingdaohengite-(Ce) from Vishnevye Mountains (Southern Urals, Russia). Mineralogiya, 3, 3–8 [in Russian with English abstract].Google Scholar
Kasatkin, A.V., Škoda, R. and Kuznetsov, A.M. (2019a) Allanite-(Nd) of Sapfirinovaya pit, Southern Urals: first finding in Russia. Mineralogiya, 5(1), 15–23 [in Russian with English abstract].Google Scholar
Kasatkin, A.V., Škoda, R., Nestola, F., Kuznetsov, A.M., Belogub, E.V. and Agakhanov, A.A. (2019b) Roentgenite-(Ce) and other REE-fluorcarbonates from the vein 35, Vyshnevye Mountains, Southern Urals. Mineralogiya, 5, 10–22 [in Russian with English abstract].Google Scholar
Kasatkin, A.V., Zubkova, N.V., Pekov, I.V., Chukanov, N.V., Škoda, R., Agakhanov, A.A., Belakovskiy, D.I. and Pushcharovsky, D.Y. (2019c) Alexkuznetsovite-(La), IMA 2019–081. CNMNC Newsletter No. 52. Mineralogical Magazine, 83, 887–893.Google Scholar
Kasatkin, A.V., Zubkova, N.V., Pekov, I.V., Chukanov, N.V., Škoda, R., Polekhovsky, Y.S., Agakhanov, A.A., Belakovskiy, D.I., Kuznetsov, A.M., Britvin, S.N. and Yu, Pushcharovsky D.. (2020a): The mineralogy of the historical Mochalin Log REE deposit, South Urals, Russia. Part I. New gatelite-group minerals ferriperbøeite-(La), (CaLa3)(Fe3+Al2Fe2+)[Si2O7][SiO4]3O(OH)2, and perbøeite-(La), (CaLa3)(Al3Fe2+)[Si2O7][SiO4]3O(OH)2. Mineralogical Magazine, 84, 593–607.10.1180/mgm.2020.42CrossRefGoogle Scholar
Kasatkin, A.V., Zubkova, N.V., Pekov, I.V., Chukanov, N.V., Ksenofontov, D.A., Agakhanov, A.A., Belakovskiy, D.I., Polekhovsky, Yu.S., Kuznetsov, A.M., Britvin, S.N., Pushcharovsky, D.Yu. and Nestola, F. (2020b) The mineralogy of the historical Mochalin Log REE deposit, South Urals, Russia. Part II. Radekškodaite-(La), (CaLa5)(Al4Fe2+)[Si2O7][SiO4]5O(OH)3, and radekškodaite-(Ce), (CaCe5)(Al4Fe2+)[Si2O7] [SiO4]5O(OH)3, two new minerals with a novel-type structure belonging to epidote–törnebohmite polysomatic series. Mineralogical Magazine, 84, 839–853.10.1180/mgm.2020.64CrossRefGoogle Scholar
Kasatkin, A.V., Zubkova, N.V., Pekov, I.V., Chukanov, N.V., Škoda, R., Agakhanov, A.A., Belakovskiy, D.I., Plášil, J., Kuznetsov, A.M., Britvin, S.N. and Pushcharovsky, D.Yu. (2020c) The mineralogy of the historical Mochalin Log REE deposit, South Urals, Russia. Part III. Percleveite-(La), La2Si2O7, a new REE disilicate mineral. Mineralogical Magazine, 84, 913–920.10.1180/mgm.2020.81CrossRefGoogle Scholar
Kasatkin, A.V., Zubkova, N.V., Pekov, I.V., Chukanov, N.V., Škoda, R., Agakhanov, A.A., Belakovskiy, D.I. and Pushcharovsky, D.Y. (2020d) Alexkuznetsovite-(Ce), IMA 2019–118. CNMNC Newsletter No. 54. Mineralogical Magazine, 84, 359–365.Google Scholar
Kasatkin, A.V., Zubkova, N.V., Pekov, I.V., Chukanov, N.V., Škoda, R., Agakhanov, A.A., Belakovskiy, D.I., Kuznetsov, A.M. and Pushcharovsky, D.Y. (2020e) Biraite-(La), IMA 2020–020. CNMNC Newsletter No.56; Mineralogical Magazine, 84, 623–627.Google Scholar
Kolisnichenko, S.V., Popov, V.A., Epanchintsev, S.G. and Kuznetsov, A.M. (2017) Mineraly Yuzhnogo Urala. Mineraly Chelyabinskoy Oblasti. Encyclopedia uralskogo kamnia [Minerals of Southern Urals. Minerals of Chelyabinsk district. Encyclopedia of the Urals stone]. Chelyabinsk, Sanarka, Russia, 416 pp. [in Russian].Google Scholar
Konev, A., Pasero, M., Puscharovsky, D., Merlino, S., Kashaev, A., Suvorova, L., Ushchapovskaya, Z., Nartova, N., Lebedeva, Y. and Chukanov, N. (2005) Biraite-(Ce), Ce2Fe2+(CO3)(Si2O7), a new mineral from Siberia with a novel structure type. European Journal of Mineralogy, 17, 715–721.10.1127/0935-1221/2005/0017-0715CrossRefGoogle Scholar
Mandarino, J.A. (1981) The Gladstone-Dale relationship. IV. The compatibility concept and its 209 application. The Canadian Mineralogist, 41, 989–1002.Google Scholar
McDonough, W.F. and Sun, S.-s. (1995) The composition of the Earth. Chemical Geology, 120, 223–253.10.1016/0009-2541(94)00140-4CrossRefGoogle Scholar
Mills, S.J., Hatert, F., Nickel, E.H. and Ferraris, G. (2009) The standardisation of mineral group hierarchies: application to recent nomenclature proposals. European Journal of Mineralogy, 21, 1073–1080.10.1127/0935-1221/2009/0021-1994CrossRefGoogle Scholar
Pekov, I.V., Alimova, A.N., Kononkova, N.N. and Kanonerov, A.A. (2002) On the mineralogy of Mochalin Log at Southern Urals I. Minerals of the bastnäsite family: history of studies and new data. Uralskiy Geologicheskiy Zhournal (Uralian Geological Journal), 4(28), 127–144 [in Russian].Google Scholar
Pekov, I.V., Zubkova, N.V., Yapaskurt, V.O., Belakovskiy, D.I., Chukanov, N.V., Kasatkin, A.V., Kuznetsov, A.M. and Pushcharovsky, D.Y. (2013) Kobyashevite, Cu5(SO4)2(OH)6⋅4H2O, a new devilline-group mineral from the Vishnevye Mountains, South Urals, Russia. Mineralogy and Petrology, 107, 201–210.10.1007/s00710-012-0236-4CrossRefGoogle Scholar
Rigaku, (2018) CrysAlisPro Software system, version 1.171.39.46. Oxford Diffraction, UK.Google Scholar
Sheldrick, G.M. (2015) Crystal structure refinement with SHELXL. Acta Crystallographica, C71, 3–8.Google Scholar
Warr, L.N. (2021) IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85, 291–320, http://dx.doi.org/10.1180/mgm.2021.43.CrossRefGoogle Scholar
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