Inorganic Solid Phases

Na0.6K1.5{(Nb0.6Ti0.4)(Nb0.5Ti0.5)[Si4O12](O,OH)2·1.6H2O (K1.5Na0.6Ti0.9Nb1.1Si4O13[OH][H2O]1.6) Crystal Structure

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General Information

  • Phase Label(s): K1.5Na0.6Ti0.9Nb1.1Si4O13[OH][H2O]1.6
  • Structure Class(es): –
  • Classification by Properties: –
  • Mineral Name(s): vuoryarvite-K
  • Pearson Symbol: mS110
  • Space Group: 8
  • Phase Prototype: K1.5Na0.6(Ti0.45Nb0.55)2Si4O12(O0.5[OH]0.5)2[H2O]1.6
  • Measurement Detail(s): automatic diffractometer; 25 (determination of cell parameters), automatic diffractometer; Enraf-Nonius CAD4F (determination of structural parameters), X-rays, Mo Kα (determination of cell and structural parameters)
  • Phase Class(es): –
  • Compound Class(es): hydroxide, silicate, hydrate
  • Interpretation Detail(s): positions of non-H atoms determined, full-matrix least-squares refinement; 1443 reflections; F > 3σ(F), R = 0.055
  • Sample Detail(s): nenadkevichite sample from Russia, Kola Peninsula, Vuoriyarvi massif, electron microprobe analysis; (Na1.8K2.8)(Ca,Sr,Ba)0.4(Nb1.98Ti1.62)Si8.0O25.8[OH]2.2[H2O]4.43, twinned crystal (determination of cell and structural parameters)

Substance Summary

  • Standard Formula: K1.5Na0.6Ti0.9Nb1.1Si4O13.2[OH]0.8[H2O]1.6
  • Alphabetic Formula: [H2O]1.6K1.5Na0.6Nb1.1O13.2[OH]0.8Si4Ti0.9
  • Published Formula: Na0.6K1.5{(Nb0.6Ti0.4)(Nb0.5Ti0.5)[Si4O12](O,OH)2·1.6H2O
  • Refined Formula: H3.95K1.49Na0.61Nb1.10O15.58Si4Ti0.90
  • Wyckoff Sequence: 8,b21a13
  • Z Formula Units: 4
  • Density: ρ = 2.68 Mg·m−3
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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_1012935

  • 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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