Inorganic Solid Phases

(Si6.2Al1.8)(Mg1.5Fe2+6.7Fe3+1.2Al2.6)(OH)17.7O20.0 (Mg0.7Fe4.45Al2.45Si2.4O10[OH]8) Crystal Structure

General Information

  • Phase Label(s): Mg0.7Fe4.45Al2.45Si2.4O10[OH]8
  • Structure Class(es):
  • Classification by Properties:
  • Mineral Name(s): chamosite
  • Pearson Symbol: mS56
  • Space Group: 12
  • Phase Prototype: (Mg0.12Fe0.66Al0.22)6(Al0.22Si0.78)4O10[OH]9
  • Measurement Detail(s): film (determination of cell and structural parameters), X-rays, Fe Kα (determination of cell and structural parameters)
  • Phase Class(es):
  • Compound Class(es): hydroxide, silicate
  • Interpretation Detail(s): positions of non-H atoms determined, trial-and-error
  • Sample Detail(s): chamosite sample from Germany, Thuringia, Schmiedefeld, sample prepared from chamosite, chemical analysis; (Si6.2Al1.8)(Mg1.5Fe2+6.7Fe3+1.2Al2.6)[OH]17.7O20.0; 26.65 wt.% SiO2, 16.14 wt.% Al2O3, 6.69 wt.% Fe2O3, 34.43 wt.% FeO, 4.47 wt.% MgO, 11.42 wt.% [H2O]−105, 0.08 wt.% [H2O]+105, powder (determination of cell and structural parameters)

Substance Summary

  • Standard Formula: Mg0.75Fe3.95Al2.2Si3.1O10[OH]9
  • Alphabetic Formula: Al2.2Fe3.95Mg0.75O10[OH]9Si3.1
  • Published Formula: (Si6.2Al1.8)(Mg1.5Fe2+6.7Fe3+1.2Al2.6)(OH)17.7O20.0
  • Refined Formula: Al2.20Fe3.95H8Mg0.75O18Si3.10
  • Wyckoff Sequence: 12,j4i3hgca
  • Z Formula Units: 2
  • Density: ρ = 3.32 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

Powder Pattern

published defraction line
d [Å]
computed diffraction line for Cu Kα
d [nm]
intensity
I [1]
h [1]
k [1]
l [1]
Radiation
Remark

Experimental Details

Reference

3D Interactive Structure

About this content

  • Database name

    PAULING FILE Multinaries Edition – 2012

  • Dataset ID

    sd_1714044

  • 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

    Citation copied