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Polezhaevaite-(Ce), NaSrCeF6, a new mineral from the Khibiny massif (Kola Peninsula, Russia)

✍ Scribed by Yakovenchuk, V. N.; Selivanova, E. A.; Ivanyuk, G. Y.; Pakhomovsky, Y. A.; Korchak, J. A.; Nikolaev, A. P.

Book ID
119999682
Publisher
Mineralogical Society of America
Year
2010
Tongue
English
Weight
869 KB
Volume
95
Category
Article
ISSN
0003-004X

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Polezhaevaite-(Ce), NaSrCeF6, a new mine
Polezhaevaite-(Ce), NaSrCeF6, a new mineral from the Khibiny massif (Kola Peninsula, Russia)
✍ Yakovenchuk, V. N.; Selivanova, E. A.; Ivanyuk, G. Y.; Pakhomovsky, Y. A.; Korch πŸ“‚ Article πŸ“… 2010 πŸ› Mineralogical Society of America 🌐 English βš– 869 KB

Polezhaevaite-(Ce) NaSrCeF 6 is a new member of the gagarinite mineral group [hexagonal, P6 3 /m, a = 6.207(7) Γ…, c = 3.801(9) Γ…, V = 126.8(2) Γ… 3 , Z = 1]. It is found in a natrolitized microcline-aegirinesodalite lens within apatite-rich urtite at Mt. Koashva (Khibiny massif, Kola Peninsula, Russi

Yakovenchukite-(Y), K3NaCaY2(Si12O30)(H2
Yakovenchukite-(Y), K3NaCaY2(Si12O30)(H2O)4, a new mineral from the Khibiny massif, Kola Peninsula, Russia: A novel type of octahedral-tetrahedral open-framework structure
✍ Krivovichev, S. V.; Pakhomovsky, Y. A.; Ivanyuk, G. Yu.; Mikhailova, J. A.; Men' πŸ“‚ Article πŸ“… 2007 πŸ› Mineralogical Society of America 🌐 English βš– 302 KB

and only six species have been identiÞ ed here so far: fergusonite-(Y), yttropyrochlore-(Y), pyatenkoite-(Y), sazykinaite-(Y), donnayite-(Y), and mckelveyite-(Y). The seventh yttrium mineral was found in 2005 by the Þ rst author during precise structural investigations of vuoriyarvite-K from specime