Inorganic Solid Phases

(Fe,Mg)3(Al,Fe)4(PO4)4(OH)6·2H2O (Mg1.5Fe1.64Al3.86[PO4]4[OH]6[H2O]2) Crystal Structure

General Information

  • Phase Label(s): Mg1.5Fe1.64Al3.86[PO4]4[OH]6[H2O]2
  • Structure Class(es):
  • Classification by Properties:
  • Mineral Name(s): gormanite
  • Pearson Symbol: aP35
  • Space Group: 2
  • Phase Prototype: (Mg0.5Fe0.5)3(Fe0.14Al0.86)4Al3[PO4]4[OH]6[H2O]2
  • Measurement Detail(s): automatic diffractometer (determination of cell parameters), automatic diffractometer; U.S.A. New York, Brookhaven National Laboratory, National Synchrotron Light Source, SUNY, X3 (determination of structural parameters), X-rays, synchrotron; λ = 0.070000 nm (determination of cell and structural parameters)
  • Phase Class(es):
  • Compound Class(es): hydroxide, orthophosphate, hydrate
  • Interpretation Detail(s): positions of non-H atoms determined, Rietveld refinement, multiphase; 91 variables, RP = 0.110; wRP = 0.120; RB = 0.0515
  • Sample Detail(s): gormanite sample from Canada, Yukon, Rapid Creek area, sample prepared from gormanite, amounts of apatite, siderite and quartz (2.7, 3.0 and 1.6 wt.%), powder (determination of cell and structural parameters)

Substance Summary

  • Standard Formula: Mg1.5Fe1.64Al3.86[PO4]4[OH]6[H2O]2
  • Alphabetic Formula: Al3.86Fe1.64[H2O]2Mg1.5[OH]6[PO4]4
  • Published Formula: (Fe,Mg)3(Al,Fe)4(PO4)4(OH)6·2H2O
  • Refined Formula: Al3.86Fe1.64H10Mg1.50O24P4
  • Wyckoff Sequence: 2,i16eba
  • Z Formula Units: 1
  • Density: ρ = 3.08 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
B [nm2]
Type
Computed
Beq [nm2]

Experimental Details

Reference

3D Interactive Structure

About this content

  • Database name

    PAULING FILE Multinaries Edition – 2012

  • Dataset ID

    sd_1601520

  • 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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