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Fluorthalénite-(Y)

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Formula:
Y3(Si3O10)F
Lustre:
Adamantine
Hardness:
4 - 5
Crystal System:
Monoclinic
Synonym:
A synonym of Thalénite-(Y)
Earlier defined as the fluorine analogue of Thalénite-(Y). Discredited by IMA in 2014 (IMA 14-D), when thalénite-(Y) was redefined as a F-dominant species with ideal composition Y3Si3O10F.


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References for Fluorthalénite-(Y)Hide

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Mineralogical Record: 29: 470.
Doklady Akademii Nauk: 354(1): 77-78.
Yakubovich, O. V.; Voloshin, A. V.; Pakhomovskii, Ya. A.; Simonov, M. A. (1988): Refined crystal structure of thalenite. Kristallografiya 33, 605-608. (In Russian.)
Schleid, T. & Müller-Bunz, H. (1998): Single crystals of Y3F[Si3O10] with thalenite-type structure. Zeitschrift für Anorganische und Allgemeine Chemie 624, 1082-1084. (In German.)
Müller-Bunz, H. and Schleid, T. (2000): Darstellung und Aufbau der Lanthanoidfluorid-catena-Trisilicate M3F[Si3O10] (M = Dy, Ho, Er) im Fluorthalenit-Typ (Y3F[Si3O10]). Z. Anorg. Allg. Chem. 626, 845-852.

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