The crystal structure of nonmetamict Nb-rich zirconolite-3T from the Eifel paleovolcanic region, Germany-Reference-Cited by-同舟云学术

The crystal structure of nonmetamict Nb-rich zirconolite-3T from the Eifel paleovolcanic region, Germany

Published:2018-01-20 Issue:7 Volume:233 Page:463-468
ISSN:2196-7105
Container-title:Zeitschrift für Kristallographie - Crystalline Materials
language:en
Short-container-title:

Author:

Zubkova Natalia V.¹,Chukanov Nikita V.²,Pekov Igor V.¹,Ternes Bernd³,Schüller Willi⁴,Ksenofontov Dmitry A.¹,Pushcharovsky Dmitry Yu.¹

Affiliation:

1. Faculty of Geology , Moscow State University, Leninskie Gory , 119991 Moscow , Russia

2. Institute of Problems of Chemical Physics , 142432 Chernogolovka , Moscow Oblast , Russia

3. Bahnhofstrasse 45 , 56727 Mayen , Germany (retired)

4. Im Straußenpesch 22 , 53518 Adenau , Germany (retired)

Abstract

Abstract The crystal structure of a Nb-rich zirconolite-3T from the Laach Lake volcano, Eifel, Germany, was studied by single-crystal XRD (R=0.0295). The mineral is trigonal, P3121; unit-cell dimensions are: a=7.3095(2), c=16.9604(5) Å, V=784.78(4) Å3. The empirical formula based on 14 O atoms (Z=3) is Ca1.28Ce0.31La0.14Nd0.12Pr0.06Th0.16 Zr1.94Hf0.04Ti1.74Nb1.22Fe0.72Mn0.28O14. The crystal-chemical formula based upon the structural model is: VIII(Ca0.70 Ce0.30)VIII(Ca0.58Ce0.32Th0.10)VII(Zr0.88Th0.04Hf0.02□0.06)2 VII(□0.94 Zr0.06)2 VI(Ti0.72Nb0.26Zr0.02)VI(Ti0.50Nb0.47Zr0.03)2 IV(Fe0.355 Mn0.145)2O14 (Z=3).

Publisher

Walter de Gruyter GmbH

Subject

Inorganic Chemistry,Condensed Matter Physics,General Materials Science

Link

https://www.degruyter.com/document/doi/10.1515/zkri-2017-2133/pdf

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