Inorganic Solid Phases

K0.78Ca0.02Na0.02(Mg0.34Al1.69Fe(III)0.02)[Si3.35Al0.65]O10(OH)2·nH2O (K0.78Mg0.34Al2.34Si3.35O10[OH]2[H2O]0.15) Crystal Structure

General Information

  • Phase Label(s): K0.78Mg0.34Al2.34Si3.35O10[OH]2[H2O]0.15
  • Structure Class(es): mica family
  • Classification by Properties:
  • Mineral Name(s): muscovite 1M
  • Pearson Symbol: mS38
  • Space Group: 12
  • Phase Prototype: K0.5Al2(Al0.125Si0.875)4O10[OH]2
  • Measurement Detail(s): automatic diffractometer (determination of cell parameters), automatic diffractometer; France, Grenoble, European Synchrotron Radiation Facility ESRF, SNBL, BM01B (determination of structural parameters), X-rays, synchrotron; λ = 0.079992 nm (determination of cell and structural parameters)
  • Phase Class(es):
  • Compound Class(es): hydroxide, silicate, hydrate
  • Interpretation Detail(s): positions of non-H atoms determined, Rietveld refinement, RP = 0.1848; wRP = 0.2621
  • Sample Detail(s): illite sample from Hungary, Tokaj region, Satoraljaujhely, chemical analysis, thermogravimetry; K0.78Ca0.02Na0.02(Mg0.34Al1.69Fe(III)0.02)[Si3.35Al0.65]O10[OH]2[H2O]n; 8.04 wt.% weight loss of water observed on heating to 1273 K, powder (determination of cell and structural parameters)

Substance Summary

  • Standard Formula: K0.78Mg0.34Al2.34Si3.35O10[OH]2[H2O]0.15
  • Alphabetic Formula: Al2.34[H2O]0.15K0.78Mg0.34O10[OH]2Si3.35
  • Published Formula: K0.78Ca0.02Na0.02(Mg0.34Al1.69Fe(III)0.02)[Si3.35Al0.65]O10(OH)2·nH2O
  • Refined Formula: Al2.31H2K0.65Mg0.34O12Si3.35
  • Wyckoff Sequence: 12,j3i2ha
  • Z Formula Units: 2
  • Density: ρ = 2.82 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]

Experimental Details

Reference

3D Interactive Structure

About this content

  • Database name

    PAULING FILE Multinaries Edition – 2012

  • Dataset ID

    sd_1628109

  • 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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