Inorganic Solid Phases

|Ca2.73Na1.44K1.03(H2O)12.0|[Al7.93Si16.07O48] (K0.51Na0.72Ca1.37Al3.96Si8.04O24[H2O]6.7) Crystal Structure

General Information

  • Phase Label(s): K0.51Na0.72Ca1.37Al3.96Si8.04O24[H2O]6.7
  • Structure Class(es): zeolite LAU
  • Classification by Properties:
  • Mineral Name(s): laumontite
  • Pearson Symbol: mS104
  • Space Group: 12
  • Phase Prototype: K0.5Na0.7Ca1.4Al4Si8O24[H2O]6
  • Measurement Detail(s): automatic diffractometer; Oxford Diffraction Gemini R Ultra (determination of structural parameters), X-rays, Mo Kα; λ = 0.071073 nm (determination of structural parameters)
  • Phase Class(es):
  • Compound Class(es): silicate, hydrate
  • Interpretation Detail(s): positions of non-H atoms determined, full-matrix least-squares refinement; 124 variables; 1968 reflections; I > 2σ(I), R = 0.0310; wR = 0.0872
  • Sample Detail(s): laumontite sample from Georgia, Akhaltsikhe, sample prepared from laumontite, electron microprobe analysis, thermogravimetry; Ca2.73Na1.44K1.03[H2O]13.7|[Al7.93Si16.07O48] before exposure to humidity, single crystal, 0.03×0.05×0.23 mm3 (determination of structural parameters)

Substance Summary

  • Standard Formula: K0.51Na0.72Ca1.37Al3.96Si8.04O24[H2O]6
  • Alphabetic Formula: Al3.96Ca1.37[H2O]6K0.51Na0.72O24Si8.04
  • Published Formula: |Ca2.73Na1.44K1.03(H2O)12.0|[Al7.93Si16.07O48]
  • Refined Formula: Al4Ca1.36H11.97K0.52Na0.72O29.98Si8
  • Wyckoff Sequence: 12,j10i4hg
  • Z Formula Units: 2
  • Density: ρ = 2.25 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_1022259

  • 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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