Inorganic Solid Phases

Na2Ti2[NaTiSi2O7]2O2(OH,F)2·Na2[PO2(OH)2]2; betalomonosovite (H2Na3Ti2[Si2O7][PO4]O2) Crystal Structure

General Information

  • Phase Label(s): H2Na3Ti2[Si2O7][PO4]O2
  • Structure Class(es):
  • Classification by Properties:
  • Mineral Name(s): betalomonosovite
  • Pearson Symbol: aP46
  • Space Group: 1
  • Phase Prototype: H2Na3Ti2[Si2O7][PO4]O2
  • Measurement Detail(s): automatic diffractometer (determination of cell parameters), automatic diffractometer; Syntex P21 (determination of structural parameters), X-rays, Mo Kα (determination of cell and structural parameters)
  • Phase Class(es):
  • Compound Class(es): orthophosphate, disilicate, oxide
  • Interpretation Detail(s): positions of non-H atoms determined, least-squares refinement, R = 0.055
  • Sample Detail(s): lomonosovite sample from Russia, Kola Peninsula, Lovozero massif, chemical analysis; 18.04 wt.% Na2O, 0.95 wt.% K2O, 3.00 wt.% CaO, 23.73 wt.% TiO2, 5.41 wt.% Nb2O5, 1.28 wt.% MnO, 1.82 wt.% Fe2O3, 25.30 wt.% SiO2, 14.58 wt.% P2O5, 5.05 wt.% H2O, 1.02 wt.% F, single crystal (determination of cell and structural parameters)

Substance Summary

  • Standard Formula: H2Na3Ti2[Si2O7][PO4]O2
  • Alphabetic Formula: H2Na3O2[PO4][Si2O7]Ti2
  • Published Formula: Na2Ti2[NaTiSi2O7]2O2(OH,F)2·Na2[PO2(OH)2]2; betalomonosovite
  • Refined Formula: Na3.62O13PSi2Ti2
  • Wyckoff Sequence: 1,a46
  • Z Formula Units: 2
  • Density: ρ = 2.85 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_1923531

  • 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

    Citation copied