Inorganic Solid Phases

Na2Ca2Si3O9 Crystal Structure

General Information

  • Phase Label(s): Na2Ca2Si3O9 rt
  • Structure Class(es):
  • Classification by Properties:
  • Mineral Name(s): combeite low
  • Pearson Symbol: hP102
  • Space Group: 152
  • Phase Prototype: Na(Na0.5Ca0.5)2CaSi3O9
  • Measurement Detail(s): automatic diffractometer; 4-circle (determination of structural parameters), X-rays, Mo Kα; λ = 0.07107 nm (determination of structural parameters)
  • Phase Class(es):
  • Compound Class(es): silicate
  • Interpretation Detail(s): complete structure determined, least-squares refinement; 132 variables; 2669 reflections, R = 0.07
  • Sample Detail(s): combeite low sample from Germany, Rhineland-Palatinate, Eifel, Mayener Feld, sample prepared from Na2Ca2Si3O9, electron microprobe analysis; Na2.2Ca1.9Si3O9; trace amounts of Fe and Mg, single crystal (determination of structural parameters)

Substance Summary

  • Standard Formula: Na2Ca2Si3O9
  • Alphabetic Formula: Ca2Na2O9Si3
  • Published Formula: Na2Ca2Si3O9
  • Refined Formula: Ca2Na2.50O9Si3
  • Wyckoff Sequence: 144,a33
  • Z Formula Units: 6
  • Density: ρ = 2.83 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_1714322

  • 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