Inorganic Solid Phases

Ca3Fe2[SiO4]3 (p = 73.47(8) GPa) Crystal Structure

General Information

  • Phase Label(s): Ca3Fe2[SiO4]3
  • Structure Class(es): garnet family
  • Classification by Properties:
  • Mineral Name(s): andradite
  • Pearson Symbol: cI160
  • Space Group: 230
  • Phase Prototype: Ca3Al2[SiO4]3
  • Measurement Detail(s): automatic diffractometer (determination of cell parameters), automatic diffractometer; Germany, Hamburg, Deutsches Elektronen-Synchrotron DESY, PETRA III reactor, P02.2 beamline, ECB (determination of structural parameters), X-rays, synchrotron; λ = 0.028968 nm (determination of cell and structural parameters), p = 73.47(8) GPa (determination of cell and structural parameters)
  • Phase Class(es):
  • Compound Class(es): orthosilicate
  • Interpretation Detail(s): complete structure determined; pressure dependence studied, least-squares refinement; 18 variables; 142 reflections; I > 2σ(I), R = 0.0518
  • Sample Detail(s): andradite sample from synthetic, sample prepared from Ca[OH]2, Fe2O3 (hematite), SiO2, electron microprobe analysis; (Ca2.71Fe2+0.21Mg0.03)(Fe3+1.97Al0.03)Si3O12, powder (determination of cell parameters), single crystal (determination of structural parameters)

Substance Summary

  • Standard Formula: Ca3Fe2[SiO4]3
  • Alphabetic Formula: Ca3Fe2[SiO4]3
  • Published Formula: Ca3Fe2[SiO4]3
  • Refined Formula: Ca2.64Fe2.36O12Si3
  • Wyckoff Sequence: 230,hdca
  • Z Formula Units: 8
  • Density: ρ = 5.26 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_1722563

  • 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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