Inorganic Solid Phases

K4Na4(Al8Si8O32)·11H2O (K2Na2Al4Si4O16[H2O]5) Crystal Structure

General Information

  • Phase Label(s): K2Na2Al4Si4O16[H2O]5
  • Structure Class(es): zeolite GIS
  • Classification by Properties:
  • Mineral Name(s): amicite
  • Pearson Symbol: mS68
  • Space Group: 5
  • Phase Prototype: K2Na2Al4Si4O16[H2O]5
  • Measurement Detail(s): automatic diffractometer (determination of cell parameters), automatic diffractometer; Bruker AXS APEX II (determination of structural parameters), X-rays, Mo Kα; λ = 0.071073 nm (determination of cell and structural parameters), T = 298 K (determination of cell and structural parameters)
  • Phase Class(es):
  • Compound Class(es): silicate, hydrate
  • Interpretation Detail(s): positions of non-H and part of H atoms determined; temperature dependence studied, full-matrix least-squares refinement on F2; 171 variables; 3864 reflections; I > 2σ(I), R = 0.0261; wR = 0.0704
  • Sample Detail(s): amicite sample from Russia, Kola Peninsula, Khibiny massif, Mt. Kukisvumchorr, electron microprobe analysis; K3.88Na3.82Ca0.02Sr0.02Mg0.10Al8.05Si7.94Fe0.01O31.85[H2O]10.6, twinned crystal (determination of cell parameters), twinned crystal, 0.3×0.35×0.4 mm3 (determination of structural parameters)

Substance Summary

  • Standard Formula: K2Na2Al4[SiO4]4[H2O]5.5
  • Alphabetic Formula: Al4[H2O]5.5K2Na2[SiO4]4
  • Published Formula: K4Na4(Al8Si8O32)·11H2O
  • Refined Formula: Al4H10.59K1.98Na1.93O21.29Si4
  • Wyckoff Sequence: 5,c16ba
  • Z Formula Units: 2
  • Density: ρ = 2.21 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_1141358

  • 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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