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Schüllerite, Ba2Na(Mn,Ca)(Fe3+,Mg,Fe2+)2Ti2(Si2O7)2(O,F)4, a new mineral species from the Eifel volcanic district, Germany

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Abstract

A new heterophyllosilicate mineral schüllerite was found in the Löhley basalt quarry in the Eifel volcanic region, Germany, as a member of the late mineral assemblage comprising nepheline, leucite, augite, phlogopite, magnetite, titanite, fresnoite, barytolamprophyllite, fluorapatite, perovskite, and pyrochlore. Flattened brown crystals of schüllerite up to 0.5 × 1 × 2 mm in size and their aggregates occur in miarolic cavities of alkali basalt. The mineral is brittle, with a Mohs hardness 3–4 and perfect cleavage parallel to (001). D calc = 3.974 g/cm3. Its IR spectrum is individual and does not contain bands of OH−, CO 2−3 or H2O. Schüllerite is biaxial (−), α = 1.756(3), β = 1.773(4), γ = 1.780(4), 2V meas = 40(20)°. Dispersion is weak, r < ν. Pleochroism is medium X > Y > Z, brown to dark brown. Chemical composition (electron microprobe, mean of five-point analyses, Fe2+/Fe3+ ratio determined by the X-ray emission spectroscopic data, wt %): 3.55 Na2O, 0.55 K2O, 3.89 MgO, 2.62 CaO, 1.99 ArO, 28.09 BaO, 3.43 FeO, 8.89 Fe2O3, 1.33 Al2O3, 11.17 TiO2, 2.45 Nb2O5, 26.12 SiO2, 2.12 F, −0.89 -O=F2, 98.98 in total. The empirical formula is (Ba1.68Sr0.18K0.11Na1.05Ca0.43Mn0.47Mg0.88Fe 2+0.44 Fe 3+1.02 Ti1.28Nb0.17Al0.24)Σ7.95Si3.98O16.98F1.02. The crystal structure was refined on a single crystal. Schüllerite is triclinic, space group P1, unit cell parameters: a = 5.4027(1), b = 7.066(4), c = 10.2178(1)Å, α = 99.816(1), β = 99.624(1), γ = 90.084(1)°, V = 378.75(2) Å3, Z = 1. The strongest lines of the X-ray powder diffraction pattern [d, Å, (I, %)]: 9.96(29), 3.308(45), 3.203(29), 2.867(29), 2.791(100), 2.664(46), 2.609(36), 2.144(52). The mineral was named in honor of Willi Schüller (born 1953), an enthusiastic, prominent amateur mineral collector, and a specialist in the mineralogy of Eifel. Type specimens have been deposited at the Fersman Mineralogical Museum of the Russian Academy of Sciences, Moscow, registration no. 3995/1,2.

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References

  • Chukanov, N.V., Mukhanova, A.A., Rastsvetaeva, R.K., Belakovsky, D.I., Möckel, S., Karimova, A.V., Britvin, S.N., and Krivovichev, S.V., Oxyphlogopite, K(Mg,Ti,Fe)3 [(Si,Al)4O10](O,F)2, a New Mineral of the Mica Group. Geol. Ore Deposits, 2011, vol. 53, spec. issue no. 7 (Zapiski Russian Mineral. Soc.), p.

  • Chukanov, N. V., Rosenberg, K. A., Rastsvetaeva, R. K., and Möckel, S., New Data on Titanium-Rich Biotite: a Problem of “Wodanite”. New Data on Minerals, 2008, vol. 43, pp. 72–77.

    Google Scholar 

  • Ferraris, G. and Gula, A., Polysomatic Aspects of Microporous Minerals -Heterophyllosilicates, Palysepioles and Rhodesite-Related Structures, Rev. Miner. Geochem., 2005, vol. 57, p. 69–104.

    Article  Google Scholar 

  • Ferraris G., Ivaldi G., Pushcharovsky, D.Yu., Zubkova N.V., Pekov I.V., The Crystal Structure of Delindeite, Ba2{(Na,K)3(Ti,Fe)[Ti2(O,OH)4Si4O14](H2O,OH)2}, a Member of the Mero-Plesiotype Bafertisite Series. Canad. Miner., 2001, vol. 39, p. 1307–1316.

    Article  Google Scholar 

  • Guan, Y.-H., Simonov, V.I. and Belov, N.V., The Crystal Structure of Bafertisite BaFe2TiO[Si2O7](OH)2. Dokl. Akad. Nauk SSSR, 1963, vol. 149, no. 6, p. 1416–1419.

    Google Scholar 

  • Kupriyanova, T.A., Filippov, M.N., and Lyamina, O.I., Chemical Bond Effects on Line Intensities in Arsenic X-ray Emission Spectrum. J. Struct. Chem., 2003, vol. 44, no. 3, p. 410–419.

    Article  Google Scholar 

  • Mann, U., Marks, M., and Markl, G., Influence of Oxygen Fugacity on Mineral Compositions in Peralkaline Melts: the Katzenbuckel Volcano, Southwest Germany. Lithos, 2006, vol. 91, nos. (1/4), p. 262–285.

    Article  Google Scholar 

  • Peng, T.-C. and Chang, C.-H., New Varieties of Lamprophyllite-Barytolamprophyllite and Orthorhombic Lamprophyllite. Scientia Sinica, 1965, vol. 14, p. 1827–1840.

    Google Scholar 

  • Peng, Z.-H., Zhang, J.-H., and Shu, J.-F., The Crystal Structure of Barytolamprophyllite. Kexue Tongbao, 1984, vol. 29, pp. 237–241.

    Google Scholar 

  • Semenov, E.I. and Chang, P.S., A New Mineral Bafertisite. Sci. Record (Beijing), 1959, vol. 3, p. 652–655.

    Google Scholar 

  • Walker, N. and Stuart, D., An Empirical Method for Correcting Diffractometer Data for Absorption Effects. Acta Cryst. A, 1983, vol. 39, no. 2, p. 158–161.

    Article  Google Scholar 

  • Yakovlevskaya, T.A. and Mineev, D.A., Crystals and Optical Orientation of Bafertisite, Tr. Mineral. Muz. AN SSSR, 1965, vol. 16, p. 293–294.

    Google Scholar 

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Authors and Affiliations

  1. Institute of Problems of Chemical Physics, Russian Academy of Sciences, Chernogolovka, Moscow oblast, 142432, Russia

    N. V. Chukanov

  2. Institute of Crystallography, Russian Academy of Sciences, Leninskii pr. 59, Moscow, 117333, Russia

    R. K. Rastsvetaeva & S. M. Aksenov

  3. St. Petersburg State University, Universitetskaya nab. 7/9, St. Petersburg, 199034, Russia

    S. N. Britvin

  4. Institute of Experimental Mineralogy, Russian Academy of Sciences, Chernogolovka, Moscow oblast, 142432, Russia

    A. A. Virus

  5. Fersman Mineralogical Museum, Russian Academy of Sciences, Leninskii pr. 8-2, Moscow, 117071, Russia

    D. I. Belakovskiy

  6. Faculty of Geology, Moscow State University, 119899, Moscow, Russia

    I. V. Pekov

  7. Dienstleistungszentrum ländlicher Raum (DLR) Westerwald-Osteifel-Aussenstelle Mayen, Bannerberg 4, 56727, Mayen, Germany

    B. Ternes

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  1. N. V. Chukanov
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Correspondence to N. V. Chukanov.

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Original Russian Text © N.V. Chukanov, R.K. Rastsvetaeva, S.N. Britvin, A.A. Virus, D.I. Belakovskiy, I.V. Pekov, S.M. Aksenov, B. Ternes, 2011, published in Zapiski RMO (Proceedings of the Russian Mineralogical Society), 2011, No. 1, pp. 67–75.

The new mineral schüllerite and its name were considered and recommended by the Commission on New Minerals and Mineral Names, Russian Mineralogical Society, and approved by the Commission on New Minerals, Nomenclature, and Mineral Classification, International Mineralogical Association September 1, 2010 (IMA no. 2010-035).

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Chukanov, N.V., Rastsvetaeva, R.K., Britvin, S.N. et al. Schüllerite, Ba2Na(Mn,Ca)(Fe3+,Mg,Fe2+)2Ti2(Si2O7)2(O,F)4, a new mineral species from the Eifel volcanic district, Germany. Geol. Ore Deposits 53, 767–774 (2011). https://doi.org/10.1134/S1075701511080046

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