Inorganic Solid Phases

K2Na3.75Li0.25Ca3{Ti2O2[Be4(Si6O18)2]} (K2Na3.75Li0.25Ca3Be4Ti2Si12O38) Crystal Structure

General Information

  • Phase Label(s): K2Na3.75Li0.25Ca3Be4Ti2Si12O38
  • Structure Class(es):
  • Classification by Properties:
  • Mineral Name(s):
  • Pearson Symbol: oF520
  • Space Group: 70
  • Phase Prototype: K2Na3.75Li0.25Ca3Be4Ti2Si12O38
  • Measurement Detail(s): automatic diffractometer; 20 (determination of cell parameters), automatic diffractometer; Enraf-Nonius (determination of structural parameters), X-rays, Mo Kα (determination of cell and structural parameters)
  • Phase Class(es):
  • Compound Class(es): silicate
  • Interpretation Detail(s): complete structure determined, least-squares refinement; 1138 reflections; I > 2σ(I), R = 0.038
  • Sample Detail(s): sample from Russia, Sakha (Yakutia), Malyi Murunsk massif, atomic absorption spectroscopy, electron microprobe analysis; 52.56 wt.% SiO2, 11.42 wt.% TiO2, 0.11 wt.% Al2O3, 0.42 wt.% FeO, 0.05 wt.% MnO, 11.51 wt.% CaO, 1.21 wt.% SrO, 8.57 wt.% Na2O, 6.86 wt.% K2O, 6.75 wt.% BeO, single crystal (determination of cell parameters), single crystal, 0.21×0.25×0.25 mm3 (determination of structural parameters)

Substance Summary

  • Standard Formula: K2Na3.75Li0.25Ca3Be4Ti2Si12O38
  • Alphabetic Formula: Be4Ca3K2Li0.25Na3.75O38Si12Ti2
  • Published Formula: K2Na3.75Li0.25Ca3{Ti2O2[Be4(Si6O18)2]}
  • Refined Formula: Be4Ca3K2Li0.25Na3.75O38Si12Ti2
  • Wyckoff Sequence: 70,h14g3fb
  • Z Formula Units: 8
  • Density: ρ = 2.91 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_1023691

  • 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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