Inorganic Solid Phases

Mg1.78Fe0.22Si2O6 (Mg0.5Fe0.5SiO3 orth) Crystal Structure

General Information

  • Phase Label(s): Mg0.5Fe0.5SiO3 orth
  • Structure Class(es):
  • Classification by Properties:
  • Mineral Name(s): enstatite/ferrosilite
  • Pearson Symbol: oP80
  • Space Group: 61
  • Phase Prototype: MgSiO3
  • Measurement Detail(s): Weissenberg photographs (determination of cell and structural parameters), X-rays, Cu K (determination of cell parameters), X-rays, Mo Kα (determination of structural parameters)
  • Phase Class(es):
  • Compound Class(es): silicate
  • Interpretation Detail(s): complete structure determined, least-squares refinement; 204 reflections; I > 0σ(I), R = 0.1384
  • Sample Detail(s): orthopyroxene group sample from Germany, Rhineland-Palatinate, Eifel, Dreiser Weiher volcano, sample prepared from sample V1, electron microprobe analysis; Mg1.78Fe0.22Si2O6 (approximate composition), single crystal (determination of cell parameters), single crystal, 0.022 mm3 (determination of structural parameters)

Substance Summary

  • Standard Formula: Mg0.89Fe0.11SiO3
  • Alphabetic Formula: Fe0.11Mg0.89O3Si
  • Published Formula: Mg1.78Fe0.22Si2O6
  • Refined Formula: Fe0.11Mg0.89O3Si
  • Wyckoff Sequence: 61,c10
  • Z Formula Units: 16
  • Density: ρ = 3.31 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_1713703

  • 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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