Inorganic Solid Phases

K(Mg1.6Fe1.4)Si3AlO10(OH)2 (KMg2.5Fe0.5AlSi3O10[OH]2) Crystal Structure

General Information

  • Phase Label(s): KMg2.5Fe0.5AlSi3O10[OH]2
  • Structure Class(es): mica family
  • Classification by Properties:
  • Mineral Name(s): celadonite 1M
  • Pearson Symbol: mS40
  • Space Group: 12
  • Phase Prototype: KMg3(Al0.25Si0.75)4O10([OH]0.5F0.5)2
  • Measurement Detail(s): automatic diffractometer; 25 (determination of cell parameters), automatic diffractometer; STOE IPDS (determination of structural parameters), X-rays, Mo Kα (determination of cell and structural parameters)
  • Phase Class(es):
  • Compound Class(es): hydroxide, silicate
  • Interpretation Detail(s): complete structure determined; composition dependence studied, full-matrix least-squares refinement on F2; F > 4σ(F), R = 0.0199; wR = 0.0512
  • Sample Detail(s): mica group sample from synthetic, sample prepared from K2CO3, MgO, Al2O3, SiO2, H2O, FeO, electron microprobe analysis; 39.5 wt.% SiO2, 22.6 wt.% MgO, 12.2 wt.% Al2O3, 10.6 wt.% K2O, 8.0 wt.% FeO; amounts of glass, magnetite and sanidine, single crystal (determination of cell and structural parameters)

Substance Summary

  • Standard Formula: KMg2.5Fe0.5AlSi3O10[OH]2
  • Alphabetic Formula: AlFe0.5KMg2.5O10[OH]2Si3
  • Published Formula: K(Mg1.6Fe1.4)Si3AlO10(OH)2
  • Refined Formula: Al1.06Fe0.51H2KMg2.49O12Si2.94
  • Wyckoff Sequence: 12,j3i2hda
  • Z Formula Units: 2
  • Density: ρ = 2.88 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
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_1811885

  • 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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