Inorganic Solid Phases

[Ca][Ca0.88Sr0.12][Al0.90Cr3+0.10][Al][Al0.37Cr3+0.12Fe3+0.51]Si3O12(OH) (Sr0.10Ca1.90Cr0.31Fe0.49Al2.20[SiO4][Si2O7]O[OH], T = 90 K) Crystal Structure

General Information

  • Phase Label(s): Sr0.10Ca1.90Cr0.31Fe0.49Al2.20[SiO4][Si2O7]O[OH]
  • Structure Class(es):
  • Classification by Properties:
  • Mineral Name(s): epidote
  • Pearson Symbol: mP42
  • Space Group: 11
  • Phase Prototype: Ca2FeAl2[SiO4][Si2O7]O[OH]
  • Measurement Detail(s): automatic diffractometer (determination of cell parameters), automatic diffractometer; Bruker AXS APEX (determination of structural parameters), X-rays, Mo Kα (determination of cell and structural parameters), T = 90 K (determination of cell and structural parameters)
  • Phase Class(es):
  • Compound Class(es): hydroxide, orthosilicate, disilicate, oxide
  • Interpretation Detail(s): positions of non-H atoms determined, full-matrix least-squares refinement on F2; 124 variables, R = 0.032; wR = 0.0912
  • Sample Detail(s): epidote sample from Japan, Shikoku Island, Sambagawa belt, Iratsu, electron microprobe analysis; (La0.002Ce0.004Sm0.001Na0.002Sr0.083Ca1.863Mg0.007Mn0.001)1.963(Fe0.531Cr0.299Ti0.005Al2.210)3.035(Al0.045Si2.955)3.000O13H0.844, single crystal (determination of cell parameters), single crystal, 0.10×0.40×0.50 mm3 (determination of structural parameters)

Substance Summary

  • Standard Formula: Sr0.12Ca1.88Cr0.22Fe0.51Al2.27[SiO4][Si2O7]O[OH]
  • Alphabetic Formula: Al2.27Ca1.88Cr0.22Fe0.51O[OH][SiO4][Si2O7]Sr0.12
  • Published Formula: [Ca][Ca0.88Sr0.12][Al0.90Cr3+0.10][Al][Al0.37Cr3+0.12Fe3+0.51]Si3O12(OH)
  • Refined Formula: Al2.27Ca1.88Cr0.22Fe0.51HO13Si3Sr0.12
  • Wyckoff Sequence: 11,f3e13ca
  • Z Formula Units: 2
  • Density: ρ = 3.48 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_1819090

  • 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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