Results 1 to 10 of about 43 (22)

Kukharenkoite-(Ce) and its mineral assemblage in pegmatites of the Vishnevye Mountains (South Urals) [PDF]

МИНЕРАЛОГИЯ (MINERALOGY), 2021
A rare Ba and REE fuorocarbonate kukharenkoite-(Ce) Ba2Ce(CO3)3F with empirical formu¬la (Ba1.88Sr0.17)2.05(Ce0.53La0.31Nd0.11)0.95(CO3)3F was found in alkali pegmatite of vein no. 35 in the Vishnevye Mountains, South Urals. Kukharenkoite-(Ce) forms small inclusions up to 3–7 µm in anatase and quartz. Raman spectrum of the studied kukharenkoite-(Ce) is
V.I. Popova, A.M. Kuznetsov, M.A. Rassomakhin, V.A. Popov, S.M. Lebedeva   +4 more
doaj   +3 more sources

A sequence of formation of «uranpyrochlore» and fluorocalciopyrochlore in alkali pegmatites from the Vishnevye Mountains, South Urals [PDF]

МИНЕРАЛОГИЯ (MINERALOGY), 2022
The sequence of formation of pyrochlore crystals of various morphology and composition is considered in an aggregate with ilmenite and feldspar of nepheline-feldspar pegmatite at Mt. Dolgaya (Vish-nevye Mountains, South Urals): altered yellowish green «uranium pyrochlore» with a UO3 content of 7.62– 42.44 wt.
V.I. Popova, V.A. Popov, I.A. Blinov, V.A. Kotlyarov, S.M. Lebedeva   +4 more
doaj   +3 more sources

Aeschynite Group Minerals from Vishnevye Mountains (South Urals) [PDF]

МИНЕРАЛОГИЯ (MINERALOGY), 2019
The crystals morphology, mineral assemblages and chemical composition of aeschynite group minerals from the Vishnevye Mountains (South Urals, Russia) are presented. Some veins of syenitic pegmatites host aeschynite-(Ce) and «thoroaeschynite». The calcite-aegirine-feldspar pegmatites and quartz-arfvedsonite veins contain nioboaeschynite-(Ce) and ...
V.A. Popov, A.V. Kasatkin, A.M. Kuznetsov, V.I. Popova   +3 more
doaj   +3 more sources

Röentgenite-(CE) and other ree fluorcarbonates from vein no. 35, Vishnevye mountains, Southern Urals [PDF]

МИНЕРАЛОГИЯ (MINERALOGY), 2019
A mineral assemblage including REE fuorcarbonates (röntgenite-(Ce) Ca2Ce3(CO3)5F3, parisite-(Ce) CaCe2(CO3)3F2, synchisite-(Ce) CaCe(CO3)2F and bastnäsite-(Ce) Ce(CO3)F) was discovered at the dumps of the Vein № 35 open pit, Mt. Dolgaya, Vishnevye Mountains, Southern Urals. These intimately intergrown minerals compose aggregates up to 1 mm in allanite-(
E.V. Belogub, Atali A. Agakhanov, Fabrizio Nestola, Radek Škoda, A.M. Kuznetsov, A.V. Kasatkin   +5 more
doaj   +3 more sources

Minerals assotiations and compositional heterogeneity of zircon from miaskite-carbonatite complex of the Vishnevye mountains, South Urals [PDF]

МИНЕРАЛОГИЯ (MINERALOGY), 2019
In alkaline rocks, pegmatites and carbonatites of the Vishnevye Mountains, zircons co-crystallized with rock-forming silicates (feldspars, nepheline, annite, etc.), as well as with some other minerals (pyrochlore, magnetite, ilmenite, apatite, monazite, calcite, etc.) and cannot be ascribed to metacrystals.
V. A. Popov, V. A. Kotlyarov, V. I. Popova   +2 more
doaj   +3 more sources

NEW FINDINGS OF RARE MINERALS IN PEGMATITES OF VISHNEVYE MOUNTAINS IN THE SOUTHERN URALS [PDF]

Минералогия, 2019
In addition to previously known 221 minerals, 11 new rare minerals were identified in alkali pegmatites of the Vishnevye Mountains. Yttrialite-(Y)Y2(Si2O7) and huanghoite-(Ce) aCe(CO3 2F were found for the first time in the Urals. Ancylite-(La)SrLa(CO3 )2(OH) ∙ H2O, baotite Ba4Ti4(Ti3Nb)(Si4O12)O16Cl, bastnäsite-(La) La(CO3 )F, hydroxylbastnäsite-(La ...
V.I. Popova, V.A. Popov, I.A. Blinov, V.A. Kotlyarov, A.V. Kasatkin, R. Škoda, S.M. Lebedeva   +6 more
openaire   +1 more source

DINGDAOHENGITE-(Ce) FROM VISHNEVYE MOUNTAINS (SOUTHERN URALS, RUSSIA) [PDF]

Минералогия, 2017
Dingdaohengite-(Ce) was found in assemblage with albite, aegirine, ferroferriwinchite, calcite, pyrite and molybdenite in the central part of the syenite pegmatite of the vein № 125 in Vishnevye mountains in the Southern Urals (the second finding in Russia).
A.V. Kasatkin, V.A. Popov, A.M. Kuznetsov, F. Nestola   +3 more
openaire   +1 more source

ZIRCONOLITE OF ALKALINE PEGMATITES OF THE VISHNEVYE MOUNTAINS: THE FIRST FINDINGS IN THE SOUTH URALS [PDF]

Минералогия, 2018
Zirconolite, a complex oxide with an idealized formula (Ca,REE)Zr(Ti,Fe,Nb)2O7 , is an accessory mineral of Nb ores from alkali pegmatites and carbonatites of the Vishnevogorsk alkaline complex (South Urals, Russia). Tabular grains of zirconolite (3–25 μm across) occur in assemblages with pyrochlore, zircon, titanite, ilmenite, and calcite.
V.A. Popov, V.I. Popova, I.A. Blinov, V.A. Kotlyarov   +3 more
openaire   +1 more source

FIRST FINDS OF BADDELEYITE IN ALKALINE COMPLEX OF THE VISHNEVYE MOUNTAINS, SOUTH URALS [PDF]

Минералогия, 2018
Baddeleyite ZrO2 is identified in abundant assemblages with zircon in alkali pegmatites of the Vishnevogorsky complex. The mineral contains Hf, Nb, and Ca in chemical composition. Its occurrence in form of accessory mineral is predicted for various rocks and pegmatite bodies of the Vishnevogorsko-Ilmenogorsky alkaline complex.
V.A. Popov, I.A. Blinov
openaire   +1 more source

ZONATION OF PHLOGOPITE OF CARBONATITE-PEGMATITES OF THE BULDYM DEPOSIT OF THE VISHNEVYE MOUNTAINS (SOUTH URALS) [PDF]

Минералогия, 2017
In a plate 19 cm in size from the columnar crystal of phlogopite Buldym deposit in the Southern Urals, we studied the composition of alternating greenish-brown, yellowish-brown and darker brown areas by electron-probe microanalysis. Dark growth zones of phlogopite are more titaniferous and ferruginous (which is typical of the mica group, annite ...
V.I. Popova, V.A. Kotlyarov, I.L. Nedosekova, V.A. Popov   +3 more
openaire   +1 more source