Inorganic Solid Phases

α-LiAlSiO4 lt (LiAl[SiO4] euc-α) Crystal Structure

General Information

  • Phase Label(s): LiAl[SiO4] euc-α
  • Structure Class(es):
  • Classification by Properties: ionic conductor
  • Mineral Name(s): eucryptite α
  • Pearson Symbol: hR126
  • Space Group: 148
  • Phase Prototype: Be2[SiO4]
  • Measurement Detail(s): automatic diffractometer; Philips PW1100 (determination of structural parameters), X-rays, Mo Kα; λ = 0.07107 nm (determination of structural parameters)
  • Phase Class(es):
  • Compound Class(es): orthosilicate
  • Interpretation Detail(s): complete structure determined; composition dependence studied, full-matrix least-squares refinement; 1710 reflections; I > 3σ(I), R = 0.054; wR = 0.041
  • Sample Detail(s): eucryptite sample from synthetic, sample prepared from Li[OH], Al[OH]3, SiO2, single crystal, 0.150×0.150×0.300 mm3 (determination of structural parameters)

Substance Summary

  • Standard Formula: LiAl[SiO4]
  • Alphabetic Formula: AlLi[SiO4]
  • Published Formula: α-LiAlSiO4 lt
  • Refined Formula: AlLiO4Si
  • Wyckoff Sequence: 148,f7
  • Z Formula Units: 18
  • Density: ρ = 2.66 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

Anisotropic

Site
U11 [nm2]
U22 [nm2]
U33 [nm2]
U12 [nm2]
U13 [nm2]
U23 [nm2]

Experimental Details

Reference

3D Interactive Structure

About this content

  • Database name

    PAULING FILE Multinaries Edition – 2012

  • Dataset ID

    sd_2041408

  • 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