Inorganic Solid Phases

lukrahnite; CaCuFe3+(AsO4)2[(H2O)(OH)]; Ca1.00(Cu0.65Zn0.35)(Fe0.85Zn0.15)(AsO4)2.00(H2O)1.15(OH)0.85 (CaCu0.65Zn0.5Fe0.85[AsO4]2[OH]0.85[H2O]1.15) Crystal Structure

General Information

  • Phase Label(s): CaCu0.65Zn0.5Fe0.85[AsO4]2[OH]0.85[H2O]1.15
  • Structure Class(es):
  • Classification by Properties:
  • Mineral Name(s): lukrahnite
  • Pearson Symbol: aP15
  • Space Group: 2
  • Phase Prototype: Zn2Pb[AsO4]2[H2O]2
  • Measurement Detail(s): automatic diffractometer (determination of cell parameters), X-rays, Cu Kα (determination of cell parameters)
  • Phase Class(es):
  • Compound Class(es): arsenate, hydroxide, hydrate
  • Interpretation Detail(s): cell parameters determined and structure type assigned
  • Sample Detail(s): lukrahnite sample from Namibia, Tsumeb, Tsumeb mine, electron microprobe analysis; 11.42 wt.% CaO, 0.05 wt.% NiO, 0.15 wt.% CoO, 10.00 wt.% CuO, 8.19 wt.% ZnO, 0.69 wt.% PbO, 0.37 wt.% Al2O3, 13.75 wt.% Fe2O3, < 0.05 wt.% Bi2O3, 0.16 wt.% P2O5, < 0.05 wt.% V2O5, 47.72 wt.% As2O5, 0.09 wt.% SO3, powder (determination of cell parameters)

Substance Summary

  • Standard Formula: CaCu0.65Zn0.5Fe0.85[AsO4]2[OH]0.85[H2O]1.15
  • Alphabetic Formula: [AsO4]2CaCu0.65Fe0.85[H2O]1.15[OH]0.85Zn0.5
  • Published Formula: lukrahnite; CaCuFe3+(AsO4)2[(H2O)(OH)]; Ca1.00(Cu0.65Zn0.35)(Fe0.85Zn0.15)(AsO4)2.00(H2O)1.15(OH)0.85
  • Refined Formula:
  • Wyckoff Sequence:
  • Z Formula Units: 1
  • Density: ρ = 4.20 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.

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_1936209

  • 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

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