Inorganic Solid Phases

KNaMg2(PO4)2·14H2O (KNaMg2[PO4]2[H2O]14) Crystal Structure

General Information

  • Phase Label(s): KNaMg2[PO4]2[H2O]14
  • Structure Class(es):
  • Classification by Properties: nonmetal
  • Mineral Name(s): hazenite
  • Pearson Symbol: oP112
  • Space Group: 62
  • Phase Prototype: KNaMg2[PO4]2[H2O]14
  • Measurement Detail(s): automatic diffractometer (determination of cell parameters), automatic diffractometer; Bruker AXS X8 APEX II (determination of structural parameters), X-rays, Mo Kα; λ = 0.071069 nm (determination of cell and structural parameters)
  • Phase Class(es):
  • Compound Class(es): orthophosphate, hydrate
  • Interpretation Detail(s): complete structure determined, least-squares refinement; 198 variables; 2416 reflections, R = 0.045; wR = 0.093
  • Sample Detail(s): hazenite sample from U.S.A. California, Mono Lake, electron microprobe analysis; K0.97(Na0.96Ca0.02)Mg2.07[(P0.98S0.02)O4]2[H2O]13.90, single crystal (determination of cell parameters), single crystal, 0.05×0.05×0.06 mm3 (determination of structural parameters)

Substance Summary

  • Standard Formula: KNaMg2[PO4]2[H2O]14
  • Alphabetic Formula: [H2O]14KMg2Na[PO4]2
  • Published Formula: KNaMg2(PO4)2·14H2O
  • Refined Formula: H28KMg2NaO22P2
  • Wyckoff Sequence: 62,d7c14
  • Z Formula Units: 4
  • Density: ρ = 1.87 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

Isotropic

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

Anisotropic

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

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_1226163

  • 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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