Inorganic Solid Phases

phurcalite (Ca2[UO2]3[AsO4]0.15[PO4]1.85[OH]4[H2O]4) Crystal Structure

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General Information

  • Phase Label(s): Ca2[UO2]3[AsO4]0.15[PO4]1.85[OH]4[H2O]4
  • Structure Class(es): –
  • Classification by Properties: –
  • Mineral Name(s): phurcalite
  • Pearson Symbol: oP232
  • Space Group: 61
  • Phase Prototype: Ca2[UO2]3[PO4]2[OH]4[H2O]4
  • Measurement Detail(s): film (determination of cell parameters), X-rays, Cu Kα; λ = 0.15418 nm (determination of cell parameters)
  • Phase Class(es): –
  • Compound Class(es): arsenate, hydroxide, orthophosphate, hydrate
  • Interpretation Detail(s): cell parameters determined and structure type assigned
  • Sample Detail(s): phurcalite sample from United Kingdom, England, Dartmoor, Merrivale quarry, chemical analysis; 8.7 wt.% CaO, 72.0 wt.% UO3, 9.4 wt.% P2O5, 1.4 wt.% As2O5, 8.5(5) wt.% H2O, powder (determination of cell parameters)

Substance Summary

  • Standard Formula: Ca2[UO2]3[AsO4]0.15[PO4]1.85[OH]4[H2O]4
  • Alphabetic Formula: [AsO4]0.15Ca2[H2O]4[OH]4[PO4]1.85[UO2]3
  • Published Formula: phurcalite
  • Refined Formula: –
  • Wyckoff Sequence: –
  • Z Formula Units: 8
  • Density: ρ = 4.34 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.

Powder Pattern

published defraction line
d [Å]
computed diffraction line for Cu Kα
d [nm]
intensity
I [1]
h [1]
k [1]
l [1]
Radiation
Remark

Experimental Details

Reference

3D Interactive Structure

About this content

  • Database name

    PAULING FILE Multinaries Edition – 2012

  • Dataset ID

    sd_1939435

  • 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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