Inorganic Solid Phases

dehydrated wadsleyite (Mg2[SiO4] wad, T = 586 K) Crystal Structure

General Information

  • Phase Label(s): Mg2[SiO4] wad
  • Structure Class(es):
  • Classification by Properties: nonmetal
  • Mineral Name(s): wadsleyite O
  • Pearson Symbol: oI56
  • Space Group: 74
  • Phase Prototype: Mn2[GeO4]
  • Measurement Detail(s): automatic diffractometer (determination of cell parameters), automatic diffractometer; Bruker AXS P4 (determination of structural parameters), X-rays, Mo Kα; λ = 0.071065 nm (determination of cell and structural parameters), T = 586 K (determination of cell and structural parameters)
  • Phase Class(es):
  • Compound Class(es): orthosilicate
  • Interpretation Detail(s): complete structure determined; temperature dependence studied, least-squares refinement; 374 reflections; I > 4σ(I), R = 0.0470
  • Sample Detail(s): sample prepared from Mg1.79H0.42SiO4, single crystal (determination of cell and structural parameters)

Substance Summary

  • Standard Formula: Mg2[SiO4]
  • Alphabetic Formula: Mg2[SiO4]
  • Published Formula: dehydrated wadsleyite
  • Refined Formula: Mg1.99O4Si0.99
  • Wyckoff Sequence: 74,jh2ge3a
  • Z Formula Units: 8
  • Density: ρ = 3.44 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
U [nm2]
Type
Computed
Beq [nm2]

Experimental Details

Reference

3D Interactive Structure

About this content

  • Database name

    PAULING FILE Multinaries Edition – 2012

  • Dataset ID

    sd_1227281

  • 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

    Citation copied