Inorganic Solid Phases

LiAlPO4(F,OH) (LiAl[PO4][OH]0.5F0.5) Crystal Structure

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General Information

  • Phase Label(s): LiAl[PO4][OH]0.5F0.5
  • Structure Class(es): –
  • Classification by Properties: –
  • Mineral Name(s): amblygonite/montebrasite
  • Pearson Symbol: aP16
  • Space Group: 2
  • Phase Prototype: LiAl[PO4][OH]
  • Measurement Detail(s): automatic diffractometer (determination of cell parameters), automatic diffractometer; U.S.A. Tennessee, Oak Ridge National Laboratory ORNL, HFIR (determination of structural parameters), neutrons; λ = 0.10037 nm (determination of cell and structural parameters), T = 295 K (determination of cell and structural parameters)
  • Phase Class(es): –
  • Compound Class(es): hydroxide, orthophosphate, fluoride
  • Interpretation Detail(s): complete structure determined; temperature dependence studied, least-squares refinement; 86 variables; 934 reflections; I > 3σ(I), R = 0.022; wR = 0.037
  • Sample Detail(s): amblygonite group sample from Canada, Manitoba, Bernic Lake, single crystal (determination of cell parameters), single crystal, 5.08 mm diameter (determination of structural parameters)

Substance Summary

  • Standard Formula: LiAl[PO4][OH]0.55F0.45
  • Alphabetic Formula: AlF0.45Li[OH]0.55[PO4]
  • Published Formula: LiAlPO4(F,OH)
  • Refined Formula: AlF0.45H0.55LiO4.55P
  • Wyckoff Sequence: 2,i8gc
  • Z Formula Units: 2
  • Density: ρ = 3.07 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

Displacement Parameters

Isotropic

Site
Published
U [nm2]
Type
Computed
Beq [nm2]

Experimental Details

Reference

3D Interactive Structure

About this content

  • Database name

    PAULING FILE Multinaries Edition – 2012

  • Dataset ID

    sd_1212978

  • 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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