Inorganic Solid Phases

Si2.490Mg0.533Na0.975O6 (NaMg0.5Si2.5O6) Crystal Structure

General Information

  • Phase Label(s): NaMg0.5Si2.5O6
  • Structure Class(es):
  • Classification by Properties:
  • Mineral Name(s):
  • Pearson Symbol: mP40
  • Space Group: 13
  • Phase Prototype: (Na0.5Ca0.5)(Mg0.4Fe0.2Al0.4)Si2O6
  • Measurement Detail(s): automatic diffractometer (determination of cell parameters), automatic diffractometer; Bruker AXS X8 SMART APEX II (determination of structural parameters), X-rays, Mo Kα (determination of cell and structural parameters)
  • Phase Class(es):
  • Compound Class(es): silicate
  • Interpretation Detail(s): complete structure determined; composition dependence studied, least-squares refinement; 94 variables; 1736 reflections, R = 0.048; wR = 0.091
  • Sample Detail(s): electron microprobe analysis; Si2.490(4)Mg0.533(7)Na0.975(6)O6, single crystal (determination of cell and structural parameters)

Substance Summary

  • Standard Formula: Na0.975Mg0.533Si2.49O6
  • Alphabetic Formula: Mg0.533Na0.975O6Si2.49
  • Published Formula: Si2.490Mg0.533Na0.975O6
  • Refined Formula: Mg0.53Na0.98O6Si2.49
  • Wyckoff Sequence: 13,g8f2e2
  • Z Formula Units: 4
  • Density: ρ = 3.29 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]

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_1223724

  • 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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