Inorganic Solid Phases

Na2.17Ca0.79Mg2.43Fe1.7Al2.27Si6.6O22[OH]0.98F1.02 Crystal Structure

General Information

  • Phase Label(s): Na2.17Ca0.79Mg2.43Fe1.7Al2.27Si6.6O22[OH]0.98F1.02
  • Structure Class(es):
  • Classification by Properties:
  • Mineral Name(s): taramite
  • Pearson Symbol: mS86
  • Space Group: 12
  • Phase Prototype: K0.1Na0.9Ca1.7Mg2.65Ti0.2Fe1.6Al0.7(Al0.22Si0.78)8O22[OH]2
  • Measurement Detail(s): automatic diffractometer (determination of cell and structural parameters), X-rays, Mo Kα (determination of cell and structural parameters)
  • Phase Class(es):
  • Compound Class(es): hydroxide, silicate, fluoride
  • Interpretation Detail(s): complete structure determined, full-matrix least-squares refinement; 899 reflections, R = 0.015
  • Sample Detail(s): taramite sample from, electron microprobe analysis; 44.96 wt.% SiO2, 13.07 wt.% Al2O3, 0.15 wt.% TiO2, 0.06 wt.% Cr2O3, 7.58 wt.% Fe2O3, 6.77 wt.% FeO, 0.15 wt.% MnO, 11.10 wt.% MgO, 5.05 wt.% CaO, 7.43 wt.% Na2O, 0.02 wt.% K2O, 2.20 wt.% F, 1.00 wt.% H2O, single crystal (determination of cell and structural parameters)

Substance Summary

  • Standard Formula: Na2.17Ca0.79Mg2.43Fe1.7Al2.27Si6.6O22[OH]0.98F1.02
  • Alphabetic Formula: Al2.27Ca0.79F1.02Fe1.7Mg2.43Na2.17O22[OH]0.98Si6.6
  • Published Formula: Na2.17Ca0.79Mg2.43Fe1.7Al2.27Si6.6O22[OH]0.98F1.02
  • Refined Formula: Al2.27Ca0.79F1.02Fe1.70H0.98Mg2.43Na2.16O22.98Si6.60
  • Wyckoff Sequence: 12,j7i3h2g2a
  • Z Formula Units: 2
  • Density: ρ = 3.23 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

Displacement Parameters

Isotropic

Site
Published
B [nm2]
Type
Computed
Beq [nm2]

Experimental Details

Reference

3D Interactive Structure

About this content

  • Database name

    PAULING FILE Multinaries Edition – 2012

  • Dataset ID

    sd_1013906

  • 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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