Batievaite-(Y), Y2Ca2Ti[Si2O7]2(OH)2(H2O)4, a new mineral from nepheline syenite pegmatite in the Sakharjok massif, Kola Peninsula, Russia

L.M. Lyalina, A.A. Jr. Zolotarev, E.A. Selivanova, Y.E. Savchenko, S.V. Krivovichev, Y.A. Mikhailova, G.I. Kadyrova, D.R. Zozulya

Research output

9 Citations (Scopus)

Abstract

© 2016 Springer-Verlag Wien Batievaite-(Y), Y2Ca2Ti[Si2O7]2(OH)2(H2O)4, is a new mineral found in nepheline syenite pegmatite in the Sakharjok alkaline massif, Western Keivy, Kola Peninsula, Russia. The pegmatite mainly consists of nepheline, albite, alkali pyroxenes, amphiboles, biotite and zeolites. Batievaite-(Y) is a late-pegmatitic or hydrothermal mineral associated with meliphanite, fluorite, calcite, zircon, britholite-group minerals, leucophanite, gadolinite-subgroup minerals, titanite, smectites, pyrochlore-group minerals, zirkelite, cerianite-(Ce), rutile, behoite, ilmenite, apatite-group minerals, mimetite, molybdenite, and nickeline. Batievaite-(Y) is pale-cream coloured with white streak and dull, greasy or pearly luster. Its Mohs hardness is 5–5.5. No cleavage or parting was observed. The measured density is 3.45(5) g/cm3. Batievaite-(Y) is optically biaxial positive, α 1.745(5), β 1.747(5), γ 1.752(5) (λ 589 nm), 2Vmeas. = 60(5)°, 2Vcalc. = 65°. Batievaite-(Y) is triclinic, space group P-1, a 9
Original languageEnglish
Pages (from-to)895-904
Number of pages10
JournalMineralogy and Petrology
DOIs
Publication statusPublished - 4 May 2016

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