Inorganic Solid Phases

Mg2.12Fe3.17Ge2.56O12, (Mg0.52Fe0.33)(Mg1.60Fe2.40)(Ge2.56Fe0.44)O12 (Mg2.12Fe3.17Ge1.56[GeO4]O8) Crystal Structure

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General Information

  • Phase Label(s): Mg2.12Fe3.17Ge1.56[GeO4]O8
  • Structure Class(es): –
  • Classification by Properties: –
  • Mineral Name(s): –
  • Pearson Symbol: tI80
  • Space Group: 122
  • Phase Prototype: Fe5(Fe0.17Ge0.83)2[GeO4]O8
  • Measurement Detail(s): Guinier film (determination of cell parameters), automatic diffractometer; Siemens P4 (determination of structural parameters), X-rays, Fe Kα1 (determination of cell parameters), X-rays, Mo Kα; λ = 0.071073 nm (determination of structural parameters)
  • Phase Class(es): –
  • Compound Class(es): orthogermanate, oxide
  • Interpretation Detail(s): complete structure determined, full-matrix least-squares refinement on F2; F > 4σ(F), R = 0.0254; wR = 0.0633
  • Sample Detail(s): sample prepared from Mg0.84Fe3.34Ge3.14O12, electron microprobe analysis; 41.35 wt.% Fe2O3, 43.87 wt.% GeO2, 14.00 wt.% MgO, powder (determination of cell parameters), single crystal, 0.2×0.2×0.3 mm3 (determination of structural parameters)

Substance Summary

  • Standard Formula: Mg2.12Fe3.17Ge1.56[GeO4]O8
  • Alphabetic Formula: Fe3.17Ge1.56[GeO4]Mg2.12O8
  • Published Formula: Mg2.12Fe3.17Ge2.56O12, (Mg0.52Fe0.33)(Mg1.60Fe2.40)(Ge2.56Fe0.44)O12
  • Refined Formula: Fe3.20Ge2.57Mg2.08O12
  • Wyckoff Sequence: 122,e3d2cba
  • Z Formula Units: 4
  • Density: ρ = 4.64 Mg·m−3
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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
U [nm2]
Type
Computed
Beq [nm2]

Anisotropic

Site
U11 [nm2]
U22 [nm2]
U33 [nm2]
U12 [nm2]
U13 [nm2]
U23 [nm2]

Experimental Details

Reference

3D Interactive Structure

About this content

  • Database name

    PAULING FILE Multinaries Edition – 2012

  • Dataset ID

    sd_1020315

  • 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)

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