Zobrazeno 1 - 5
of 5
pro vyhledávání: '"Radu Bailau"'
Autor:
Evgeny V. Galuskin, Frank Gfeller, Viktor V. Sharygin, Thomas Armbruster, Radu Bailau, Irina O. Galuskina
Publikováno v:
European Journal of Mineralogy. 27:99-111
The mayenite supergroup, accepted by the IMA-CNMNC (proposal 13-C), is a new mineral supergroup comprising two groups of minerals isostructural with mayenite (space group No. 220, I43d, a ! 12 A˚) with the general formula X12T14O32" x(OH)3x(W6" 3x):
Autor:
Joachim Kusz, Frank Gfeller, Aleksander E. Zadov, V. M. Gazeev, Evgeny V. Galuskin, Radu Bailau, Piotr Dzierżanowski, Mateusz Dulski, Irina O. Galuskina, Thomas Armbruster, Nikolai N. Pertsev
Publikováno v:
European Journal of Mineralogy. 27:113-122
The new mineral chlorkyuygenite, Ca 12 Al 14 O 32 [(H 2 O) 4 Cl 2 ] ( I 4 ¯ 3 d , a =12.0285(1)A, V =1740.34(3)A 3 ), was discovered as an accessory mineral in Ca-humite zones of calcareous skarn xenoliths in ignimbrites of the Upper Chegem Caldera,
Autor:
V. M. Gazeev, Leonid Dubrovinsky, Evgeny V. Galuskin, Radu Bailau, Nikolai N. Pertsev, A. G. Gurbanov, Lidia Jeżak, Irina O. Galuskina, Aleksandr E. Zadov, Krystian Prusik
Publikováno v:
European Journal of Mineralogy. 25:221-229
Eltyubyuite (IMA2011-022), ideally Ca 12 Fe 3+ 10 Si 4 O 32 Cl 6 i.e . the Fe 3+ analogue of wadalite, Ca 12 Al 10 Si 4 O 32 Cl 6 , was discovered in altered silicate-carbonate xenoliths in the diatreme facies of ignimbrites in the Upper Chegem calde
Autor:
Irina O. Galuskina, B. Ternes, Mikhail N. Murashko, Radu Bailau, T. Armbruster, Evgeny V. Galuskin, Joachim Kusz
Publikováno v:
Mineralogical Magazine. 76:707-716
New electron-microprobe analyses of mayenite from the Ettringer Bellerberg volcano near Mayen in the Eifel district, Germany have high Cl contents and Raman spectroscopy indicates the presence of OH groups. Neither of these components is included in
Autor:
A. G. Gurbanov, Piotr Dzierżanowski, Krystian Prusik, Nikolai N. Pertsev, V. M. Gazeev, Aleksandr E. Zadov, Irina O. Galuskina, E. V. Galuskin, Radu Bailau
Publikováno v:
Mineralogical Magazine. 75:2563-2572
Megawite is a perovskite-group mineral with an ideal formula CaSnO3 that was discovered in altered silicate-carbonate xenoliths in the Upper Chegem caldera, Kabardino-Balkaria, Northern Caucasus. Russia. Megawite occurs in ignimbrite, where it forms