Inorganic Solid Phases

(Na0.71K0.16Ca0.03)0.90(Al2.02Fe3+0.01Mg0.01)2.04(Si2.96Al1.04)4.0O9.98(OH)2.02 (K0.2Na0.8Al3Si3O10[OH]2) Crystal Structure

General Information

  • Phase Label(s): K0.2Na0.8Al3Si3O10[OH]2
  • Structure Class(es): mica family
  • Classification by Properties:
  • Mineral Name(s): paragonite 3T
  • Pearson Symbol: hP60
  • Space Group: 151
  • Phase Prototype: (K0.2Na0.8)Al3Si3O10[OH]2
  • Measurement Detail(s): electron diffraction (determination of cell and structural parameters), electrons (determination of cell and structural parameters)
  • Phase Class(es):
  • Compound Class(es): hydroxide, silicate
  • Interpretation Detail(s): positions of non-H atoms determined, least-squares refinement; 208 reflections, R = 0.13
  • Sample Detail(s): paragonite sample from, chemical analysis; (Na0.71K0.16Ca0.03)0.90(Al2.02Fe3+0.01Mg0.01)2.04(Si2.96Al1.04)4.0O9.98[OH]2.02, polycrystalline sample (determination of cell and structural parameters)

Substance Summary

  • Standard Formula: K0.2Na0.8Al3Si3O10[OH]2
  • Alphabetic Formula: Al3K0.2Na0.8O10[OH]2Si3
  • Published Formula: (Na0.71K0.16Ca0.03)0.90(Al2.02Fe3+0.01Mg0.01)2.04(Si2.96Al1.04)4.0O9.98(OH)2.02
  • Refined Formula: Al3H2K0.26Na0.64O12Si3
  • Wyckoff Sequence: 151,c8ba3
  • Z Formula Units: 3
  • Density: ρ = 2.93 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

Experimental Details

Reference

3D Interactive Structure

About this content

  • Database name

    PAULING FILE Multinaries Edition – 2012

  • Dataset ID

    sd_1802227

  • 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)

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