Inorganic Solid Phases

BaAl2Si2O8·H2O (BaAl2Si2O8[H2O]) Crystal Structure

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General Information

  • Phase Label(s): BaAl2Si2O8[H2O]
  • Structure Class(es): –
  • Classification by Properties: –
  • Mineral Name(s): cymrite
  • Pearson Symbol: mP112
  • Space Group: 4
  • Phase Prototype: BaAl2[SiO4]2[H2O]0.9
  • Measurement Detail(s): photographs (determination of cell and structural parameters), X-rays, Mo K (determination of cell and structural parameters)
  • Phase Class(es): –
  • Compound Class(es): silicate, hydrate
  • Interpretation Detail(s): positions of non-H atoms determined, least-squares refinement, R = 0.135
  • Sample Detail(s): cymrite sample from U.S.A. California, single crystal (determination of cell parameters), single crystal, 0.2 mm3 (determination of structural parameters)

Substance Summary

  • Standard Formula: BaAl2Si2O8[H2O]
  • Alphabetic Formula: Al2Ba[H2O]O8Si2
  • Published Formula: BaAl2Si2O8·H2O
  • Refined Formula: Al2BaH2O9Si2
  • Wyckoff Sequence: 4,a60
  • Z Formula Units: 8
  • Density: ρ = 3.49 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

Experimental Details

Reference

3D Interactive Structure

About this content

  • Database name

    PAULING FILE Multinaries Edition – 2012

  • Dataset ID

    sd_1801540

  • 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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