Inorganic Solid Phases

Na15(M1)6(M2)3Zr3(M3)(Si25O72)(O,OH,H2O)3X2 (Na15Ca3.5CeZr3Nb0.7Mn4.5Si25O73.5[OH]F1.5[H2O]2) Crystal Structure

General Information

  • Phase Label(s): Na15Ca3.5CeZr3Nb0.7Mn4.5Si25O73.5[OH]F1.5[H2O]2
  • Structure Class(es): eudialyte family
  • Classification by Properties:
  • Mineral Name(s): kentbrooksite
  • Pearson Symbol: hR456
  • Space Group: 160
  • Phase Prototype: Na15Ca3.5CeZr3Nb0.7Mn4.5Si25O73.5[OH]F1.5[H2O]2
  • Measurement Detail(s): automatic diffractometer; Siemens (determination of structural parameters), X-rays, Mo Kα (determination of structural parameters)
  • Phase Class(es):
  • Compound Class(es): hydroxide, silicate, fluoride, hydrate
  • Interpretation Detail(s): positions of non-H atoms determined, full-matrix least-squares refinement; 283 variables; 2024 reflections, R = 0.041; wR = 0.084
  • Sample Detail(s): kentbrooksite sample from Greenland, East Greenland, Kangerdlugssuaq intrusion, Amdrup fjord, electron microprobe analysis; 45.34 wt.% SiO2, 11.08 wt.% ZrO2, 2.26 wt.% Nb2O5, 2.23 wt.% La2O3, 2.44 wt.% Ce2O3, 1.46 wt.% Y2O3, 1.54 wt.% FeO, 8.01 wt.% MnO, 5.62 wt.% CaO, 14.51 wt.% Na2O, 0.88 wt.% F, < 0.5 wt.% TiO2, HfO2, Al2O3, SrO, BaO, K2O, F, single crystal (determination of structural parameters)

Substance Summary

  • Standard Formula: Na15Ca3.5CeZr3Nb0.7Mn4.5Si25O73.5[OH]F1.5[H2O]2
  • Alphabetic Formula: Ca3.5CeF1.5[H2O]2Mn4.5Na15Nb0.7O73.5[OH]Si25Zr3
  • Published Formula: Na15(M1)6(M2)3Zr3(M3)(Si25O72)(O,OH,H2O)3X2
  • Refined Formula: Al0.15Ca3.36Ce1.38Cl0.27F1.54Fe0.74H0.19Hf0.06K0.30Mn3.79Na12.96Nb0.55O75.75Si25.11Sr0.15Ti0.20Y0.42Zr2.96
  • Wyckoff Sequence: 160,c9b30a8
  • Z Formula Units: 3
  • Density: ρ = 3.00 Mg·m−3

Crystallographic Data

Cell Parameters

Published Data
Standardized Data
Unit Cell
Niggli-Reduced Cell
Space Group
a
b
c
α
β
γ
a/b
b/c
c/a
V

Atom Coordinates

Standardized

Site
Element
Wyckoff Symbol
Symmetry
X
Y
Z
Occupation
Co-ord. No.
Atomic Env.

Published

Site
Element
Wyckoff Symbol
Symmetry
X
Y
Z
Occupation

Experimental Details

Reference

3D Interactive Structure

About this content

  • Database name

    PAULING FILE Multinaries Edition – 2012

  • Dataset ID

    sd_1906906

  • Copyright

    ©Springer & Material Phases Data System (MPDS), Switzerland & National Institute for Materials Science (NIMS), Japan, 2016

  • Chief Editor

    Pierre Villars, Material Phases Data System (MPDS), CH-6354 Vitznau, Switzerland

    villars.mpds@bluewin.ch

  • Credits

    SpringerMaterials Release 2016.

    Data generated pre-2002: © Springer & MPDS & NIMS; post-2001: © Springer & MPDS

    All Rights Reserved. Version 2016.10.

    Project Coordinator: Shuichi Iwata

    Section-Editor: Karin Cenzual (Crystal Structures)

  • Cite this content

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