Inorganic Solid Phases

BaFe(Fe0.85Mn0.08Mg0.07)Si2O7 (BaMg0.07Mn0.08Fe1.85[Si2O7]) Crystal Structure

General Information

  • Phase Label(s): BaMg0.07Mn0.08Fe1.85[Si2O7]
  • Structure Class(es):
  • Classification by Properties:
  • Mineral Name(s): andremeyerite
  • Pearson Symbol: mP48
  • Space Group: 14
  • Phase Prototype: Ba(Mg0.07Mn0.08Fe0.85)Fe[Si2O7]
  • Measurement Detail(s): automatic diffractometer (determination of cell parameters), automatic diffractometer; Philips PW1100 (determination of structural parameters), X-rays, Mo Kα (determination of cell and structural parameters)
  • Phase Class(es):
  • Compound Class(es): disilicate
  • Interpretation Detail(s): complete structure determined; twinning mechanism studied, least-squares refinement; 1430 reflections; I > 6σ(I), R = 0.039
  • Sample Detail(s): andremeyerite sample from Democratic Republic of Congo (Zaire), Mt. Nyiragongo volcano, electron microprobe analysis; 32.46 wt.% SiO2, 31.55 wt.% FeO, 1.33 wt.% MnO, 0.75 wt.% MgO, 32.55 wt.% BaO et al., single crystal (determination of cell parameters), single crystal, 0.11×0.16×0.18 mm3 (determination of structural parameters)

Substance Summary

  • Standard Formula: BaMg0.07Mn0.08Fe1.85[Si2O7]
  • Alphabetic Formula: BaFe1.85Mg0.07Mn0.08[Si2O7]
  • Published Formula: BaFe(Fe0.85Mn0.08Mg0.07)Si2O7
  • Refined Formula: BaFe1.85Mg0.07Mn0.08O7Si2
  • Wyckoff Sequence: 14,e12
  • Z Formula Units: 4
  • Density: ρ = 4.28 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]

Anisotropic

Site
β11 [nm2]
β22 [nm2]
β33 [nm2]
β12 [nm2]
β13 [nm2]
β23 [nm2]

Experimental Details

Reference

3D Interactive Structure

About this content

  • Database name

    PAULING FILE Multinaries Edition – 2012

  • Dataset ID

    sd_1616304

  • 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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