Inorganic Solid Phases

(Mg7Al2)(Si4Al2)O15(OH)12 (Mg2.33Al1.33Si1.33O5[OH]4) Crystal Structure

General Information

  • Phase Label(s): Mg2.33Al1.33Si1.33O5[OH]4
  • Structure Class(es):
  • Classification by Properties:
  • Mineral Name(s): dozyite
  • Pearson Symbol: mS84
  • Space Group: 8
  • Phase Prototype: (Mg0.78Al0.22)3(Al0.33Si0.67)2O5[OH]4
  • Measurement Detail(s): automatic diffractometer; 15 (determination of cell parameters), automatic diffractometer; Syntex P21 (determination of structural parameters), X-rays, Mo Kα (determination of cell and structural parameters)
  • Phase Class(es):
  • Compound Class(es): hydroxide, silicate
  • Interpretation Detail(s): positions of non-H atoms in average structure determined, R = 0.075
  • Sample Detail(s): dozyite sample from Indonesia, Papua (Irian Jaya), Carstensz Mountains, Ertsberg East complex, electron microprobe analysis; 29.69 wt.% SiO2, 20.29 wt.% Al2O3, 34.74 wt.% MgO, 1.63 wt.% FeO, single crystal (determination of cell and structural parameters)

Substance Summary

  • Standard Formula: Mg2.33Al1.33Si1.33O5[OH]4
  • Alphabetic Formula: Al1.33Mg2.33O5[OH]4Si1.33
  • Published Formula: (Mg7Al2)(Si4Al2)O15(OH)12
  • Refined Formula: Al1.32H4Mg2.34O9Si1.34
  • Wyckoff Sequence: 8,b15a12
  • Z Formula Units: 6
  • Density: ρ = 2.64 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

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_1617427

  • 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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