Search Results - "Yakovenchuk, Victor N."

The Crystal Structure of Sergeysmirnovite, MgZn2(PO4)2·4H2O, and Complexity of the Hopeite Group and Related Structures by Krivovichev, Sergey V., Panikorovskii, Taras L., Yakovenchuk, Victor N.

“…The crystal structure of sergeysmirnovite, MgZn2(PO4)2·4H2O (orthorhombic, Pnma, a = 10.6286(4), b = 18.3700(6), c = 5.02060(15) Å, V = 980.26(6) Å3, Z = 4), a…”
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Fluorine Controls Mineral Assemblages of Alkaline Metasomatites by Julia A. Mikhailova, Yakov A. Pakhomovsky, Natalia G. Konopleva, Andrey O. Kalashnikov, Victor N. Yakovenchuk

“…In the Khibiny and Lovozero alkaline massifs, there are numerous xenoliths of the so-called ‘aluminous hornfelses’ composed of uncommon mineral associations,…”
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Petrogenesis of the Eudialyte Complex of the Lovozero Alkaline Massif (Kola Peninsula, Russia) by Julia A. Mikhailova, Gregory Yu. Ivanyuk, Andrey O. Kalashnikov, Yakov A. Pakhomovsky, Ayya V. Bazai, Victor N. Yakovenchuk

“…The Lovozero Alkaline Massif intruded through the Archaean granite-gneiss and Devonian volcaniclastic rocks about 360 million years ago, and formed a large (20…”
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Ion-Exchange-Induced Transformation and Mechanism of Cooperative Crystal Chemical Adaptation in Sitinakite: Theoretical and Experimental Study by Taras L. Panikorovskii, Galina O. Kalashnikova, Anatoly I. Nikolaev, Igor A. Perovskiy, Ayya V. Bazai, Victor N. Yakovenchuk, Vladimir N. Bocharov, Natalya A. Kabanova, Sergey V. Krivovichev

“…The microporous titanosilicate sitinakite, KNa2Ti4(SiO4)2O5(OH)·4H2O, was first discovered in the Khibiny alkaline massif. This material is also known as…”
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Pre-Pegmatite Stage in Peralkaline Magmatic Process: Insights from Poikilitic Syenites from the Lovozero Massif, Kola Peninsula, Russia by Julia A. Mikhailova, Yakov A. Pakhomovsky, Olga F. Goychuk, Andrey O. Kalashnikov, Ayya V. Bazai, Victor N. Yakovenchuk

“…The Lovozero peralkaline massif (Kola Peninsula, Russia) is widely known for its unique mineral diversity, and most of the rare metal minerals are found in…”
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Microwave-Assisted Synthesis of Titanosilicates Using a Precursor Produced from Titanium Ore Concentrate by Kalashnikova, Galina O., Gryaznova, Darya V., Baranchikov, Alexander E., Britvin, Sergey N., Yakovenchuk, Victor N., Samburov, Gleb O., Veselova, Varvara O., Pulyalina, Aleksandra Y., Pakhomovsky, Yakov A., Bazai, Ayya V., Glazunova, Margarita Y., Shirokaya, Anna A., Kozerozhets, Irina V., Nikolaev, Anatoly I., Ivanov, Vladimir K.

“…Titanosilicates comprise a broad class of materials with promising technological applications. The typical obstacle that restricts their industrial…”
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Titanite Ores of the Khibiny Apatite-Nepheline-Deposits: Selective Mining, Processing and Application for Titanosilicate Synthesis by Lidia G. Gerasimova, Anatoly I. Nikolaev, Marina V. Maslova, Ekaterina S. Shchukina, Gleb O. Samburov, Victor N. Yakovenchuk, Gregory Yu. Ivanyuk

“…Geological setting and mineral composition of (apatite)-nepheline-titanite ore from the Khibiny massif enable selective mining of titanite ore, and its…”
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Three-D Mineralogical Mapping of the Kovdor Phoscorite–Carbonatite Complex, NW Russia: I. Forsterite by Julia A. Mikhailova, Gregory Yu. Ivanyuk, Andrey O. Kalashnikov, Yakov A. Pakhomovsky, Ayya V. Bazai, Taras L. Panikorovskii, Victor N. Yakovenchuk, Nataly G. Konopleva, Pavel M. Goryainov

“…The Kovdor alkaline-ultrabasic massif (NW Russia) is formed by three consequent intrusions: peridotite, foidolite-melilitolite and phoscorite-carbonatite…”
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Subsolidus Evolution of the Magnetite-Spinel-UlvöSpinel Solid Solutions in the Kovdor Phoscorite-Carbonatite Complex, NW Russia by Gregory Yu. Ivanyuk, Andrey O. Kalashnikov, Yakov A. Pakhomovsky, Ayya V. Bazai, Pavel M. Goryainov, Julia A. Mikhailova, Victor N. Yakovenchuk, Nataly G. Konopleva

“…The Kovdor phoscorite-carbonatite ore-pipe rocks form a natural series, where apatite and magnetite first gradually increase due to the presence of earlier…”
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Three-D Mineralogical Mapping of the Kovdor Phoscorite-Carbonatite Complex, NW Russia: II. Sulfides by Gregory Yu. Ivanyuk, Yakov A. Pakhomovsky, Taras L. Panikorovskii, Julia A. Mikhailova, Andrei O. Kalashnikov, Ayya V. Bazai, Victor N. Yakovenchuk, Nataly G. Konopleva, Pavel M. Goryainov

“…The world largest phoscorite-carbonatite complexes of the Kovdor (Russia) and Palabora (South Africa) alkaline-ultrabasic massifs have comparable composition,…”
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Shkatulkalite, a Rare Mineral from the Lovozero Massif, Kola Peninsula: A Re-Investigation by Andrey A. Zolotarev, Ekaterina A. Selivanova, Sergey V. Krivovichev, Yevgeny E. Savchenko, Taras L. Panikorovskii, Lyudmila M. Lyalina, Leonid A. Pautov, Victor N. Yakovenchuk

“…The crystal structure of shkatulkalite has been solved from the crystal from the Lovozero alkaline massif, Kola Peninsula, Russia. The mineral is monoclinic,…”
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Chirvinskyite, (Na,Ca)13(Fe,Mn,□)2(Ti,Nb)2(Zr,Ti)3-(Si2O7)4(OH,O,F)12, a New Mineral with a Modular Wallpaper Structure, from the Khibiny Alkaline Massif (Kola Peninsula, Russia) by Victor N. Yakovenchuk, Yakov A. Pakhomovsky, Taras L. Panikorovskii, Andrey A. Zolotarev, Julia A. Mikhailova, Vladimir N. Bocharov, Sergey V. Krivovichev, Gregory Yu. Ivanyuk

“…Chirvinskyite, (Na,Ca)13(Fe,Mn,□)2(Ti,Nb)2(Zr,Ti)3(Si2O7)4(OH,O,F)12, is a new wöhlerite-related zirconotitano-sorosilicate. It is triclinic, P 1 ¯ , a =…”
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Nefedovite, Na5Ca4(PO4)4F: thermal evolution, phase transition and crystal structure refinement by Avdontceva, Margarita S., Shablinskii, Andrey P., Krzhizhanovskaya, Maria G., Krivovichev, Sergey V., Zolotarev, Andrey A., Bocharov, Vladimir N., Vlasenko, Natalia S., Avdontseva, Evgenia Yu, Yakovenchuk, Victor N.

“…Nefedovite, Na 5 Ca 4 (PO 4 ) 4 F, has been investigated by in situ high-temperature powder (30–690 °C) and single crystal (27–827 °C) X-ray diffraction and…”
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Cation ordering and superstructures in natural layered double hydroxides by Krivovichev, Sergey V, Yakovenchuk, Victor N, Zolotarev, Jr, Andrey A, Ivanyuk, Gregory N, Pakhomovsky, Yakov A

“…Layered double hydroxides (LDHs) constitute an important group of materials with many applications ranging from catalysis and absorption to carriers for drug…”
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The AM-4 Family of Layered Titanosilicates: Single-Crystal-to-Single-Crystal Transformation, Synthesis and Ionic Conductivity by Kalashnikova, Galina O, Krivovichev, Sergey V, Yakovenchuk, Victor N, Selivanova, Ekaterina A, Avdontceva, Margarita S, Ivanyuk, Gregory Yu, Pakhomovsky, Yakov A, Gryaznova, Darya V, Kabanova, Natalya A, Morkhova, Yelizaveta A, Sinel'shchikova, Olga Yu, Bocharov, Vladimir N, Nikolaev, Anatoly I, Goychuk, Olga F, Volkov, Sergei N, Panikorovskii, Taras L

“…Flexible crystal() structures, which exhibit() single-crystal()-to-single-crystal() (SCSC) transformations(), are attracting attention() in many applied…”
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Thermal Evolution of Natural Layered Double Hydroxides: Insight from Quintinite, Hydrotalcite, Stichtite, and Iowaite as Reference Samples for CO3- and Cl-Members of the Hydrotalcite Supergroup by Elena S. Zhitova, H. Chris Greenwell, Mariya G. Krzhizhanovskaya, David C. Apperley, Igor V. Pekov, Victor N. Yakovenchuk

“…In Situ high-temperature powder X-ray diffraction experiments were undertaken for the coarse crystalline natural layered double hydroxides (LDHs) quintinite,…”
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Eudialyte Group Minerals from the Lovozero Alkaline Massif, Russia: Occurrence, Chemical Composition, and Petrogenetic Significance by Julia A. Mikhailova, Yakov A. Pakhomovsky, Taras L. Panikorovskii, Ayya V. Bazai, Victor N. Yakovenchuk

“…The Lovozero Alkaline Massif intruded through the Archean granite-gneiss and Devonian volcaniclastic rocks ca. 360 Ma ago and formed a large laccolith-type…”
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3D mineralogical mapping of the Kovdor phoscorite–carbonatite complex (Russia) by Mikhailova, Julia A., Kalashnikov, Andrey O., Sokharev, Victor A., Pakhomovsky, Yakov A., Konopleva, Nataly G., Yakovenchuk, Victor N., Bazai, Ayya V., Goryainov, Pavel M., Ivanyuk, Gregory Yu

“…The Kovdor baddeleyite–apatite–magnetite deposit in the Kovdor phoscorite–carbonatite pipe is situated in the western part of the zoned alkali-ultrabasic…”
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The crystal structure of loparite: a new acentric variety by Popova, Elena A., Lushnikov, Sergey G., Yakovenchuk, Victor N., Krivovichev, Sergey V.

“…The crystal structure of a new structural variety of loparite (Na 0.56 Ce 0.21 La 0.14 Ca 0.06 Sr 0.03 Nd 0.02 Pr 0.01 ) Σ=1.03 (Ti 0.83 Nb 0.15 ) Σ=0.98 O 3…”
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High-temperature induced dehydration, phase transition and exsolution in amicite: A single-crystal X-ray study by Pakhomova, Anna S., Danisi, Rosa Micaela, Armbruster, Thomas, Lazic, Biljana, Gfeller, Frank, Krivovichev, Sergey V., Yakovenchuk, Victor N.

“…•Dehydration of amicite was studied using single-crystal X-ray diffraction.•Amicite was found to dehydrate into two separate Na- and K-rich phases.•Crystal…”
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