Browsing Геология России by Author "Yakovenchuk V.N."
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Browsing Геология России by Author "Yakovenchuk V.N."
Now showing items 1-9 of 9
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Krivovichev S.V.; Yakovenchuk V.N.; Pakhomovsky Y.A.; Menshikov Y.P.; Burns P.C. (2003)The crystal structure of cafetite, ideally Ca[Ti2O5](H2O), (monoclinic, P21/n, a = 4.9436(15), b = 12.109(4), c = 15.911(5) Å, β = 98.937(5)°, V = 940.9(5) Å3, Z = 8) has been solved by direct methods and refined to R1 = ...
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Pakhomovsky Y.A.; Men'shikov Y.P.; Yakovenchuk V.N.; Ivanyuk G.Y.; Krivovichev S.V.; Burns P.C. (2002)Cerite-(La), ideally (La,Ce,Ca)(9)(Fe,Ca,Mg)(SiO4)(3)[SiO3(OH)](4)(OH)(3), was found in an aegirine-natrolite-microcline vein in foyaite, Mt. Yuksporr, Khibina massif, Kola Peninsula, Russia. It forms porous pseudomorphs ...
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Yakovenchuk V.N.; Pakhomovsky Y.A.; Ivanyuk G.Yu.; Men'shikov Y.P.; Krivovichev S.V.; Burns P.C. (2003)Chlorbartonite, ideally K6Fe24S26(Cl,S , is a new potassium iron sulfide chloride found as an accessory mineral in a microcline - pectolite - sodalite - aegirine vein within feldspathic urtite at Mount Koashva, Khibina ...
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Krivovichev S.V.; Britvin S.N.; Burns P.C.; Yakovenchuk V.N. (2002)The crystal structure of rimkorolgite, ideally Ba[Mg-5(H2O)(7)(PO4)(4)](H2O), (monoclinic, P2(1)/c, a = 8.3354(9), b = 12.8304(13), c = 18.313(2) Angstrom, beta = 90.025(2)degrees, V = 1958.5(4) Angstrom(3), Z = 4) has ...
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Krivovichev S.V.; Armbruster T.; Yakovenchuk V.N.; Pakhomovsky Y.A.; Men'shikov Y.P. (2003)The crystals of lamprophyllite-2M and lamprophyllite-2O were found coexisting in an ussingite-microcline-sodalite veins in the Alluaiv Mt., Lovozero alkaline massif, in association with ussingite, aegirine, microcline, ...
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Zaitsev A.N.; Yakovenchuk V.N.; Chao G.Y.; Gault R.A.; Subbotin V.V.; Pakhomosky Y.A.; Bogdanova A.N. (1996)Kukharenkoite-(Ce), ideally Ba2Ce(CO3)3F, is a new rare-earth fluorocarbonate mineral, occurring as an accessory mineral in the late REE-carbonatites and REE-rich carbonate-zeolite rocks of the Khibina massif, Kola peninsula, ...
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Armbruster T.; Krivovichev S.V.; Weber T.; Gnos E.; Organova N.N.; Shlyukova Z.V.; Yakovenchuk V.N. (2004)The average crystal structures of two natural porous titanosilicates of the labuntsovite group, lemmleinite-Ba and lemmleinite-K, ideally Na4K4Ba2Ti8(Si4O 12)4O4(OH)4·8H 2O and Na4K4K2Ti 8(Si4 O12)4O 2(0H)6·8H2O, respectively, ...
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Krivovichev S.V.; Yakovenchuk V.N.; Armbruster T.; Döbelin N.; Pattison P.; Weber H.-P.; Depmeier W. (2004)The crystal structure of yuksporite, (Sr,Ba)2K4(Ca,Na)14(□,Mn,Fe){(Ti,Nb)4(O,OH)4[Si6O17]2[Si2O7]3}(H2O,OH)n, where n ~ 3 [monoclinic, P21/m, a = 7.126(3), b = 24.913(6), c = 17.075(7) Å, β = 101.89(3)°, V = 2966.4(17) Å3] ...
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Krivovichev S.V.; Depmeier W.; Yakovenchuk V.N.; Pakhomovsky Y.A.; Armbruster T.; Weber H.-P. (2004)The structure of shafranovskite, ideally K2Na3(Mn,Fe,Na)4[Si9(O,OH) 27](OH)2·nH2O (n ∼ 2.33), a K-Na-manganese hydrous silicate from Kola peninsula, Russia, was studied using synchrotron X-ray radiation and a MAR345 ...
Now showing items 1-9 of 9
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