Inorganic Solid Phases

Mg39Si28O70(OH)50 (Mg39Si28O70[OH]50 tricl) Crystal Structure

General Information

  • Phase Label(s): Mg39Si28O70[OH]50 tricl
  • Structure Class(es):
  • Classification by Properties:
  • Mineral Name(s): antigorite A (m=14)
  • Pearson Symbol: aP187
  • Space Group: 1
  • Phase Prototype: Mg39Si28O70[OH]50
  • Measurement Detail(s): high-resolution electron microscope HREM (determination of cell parameters), electron microscopy; JEOL JEM-4000EX (determination of structural parameters), electrons (determination of cell and structural parameters)
  • Phase Class(es):
  • Compound Class(es): hydroxide, silicate
  • Interpretation Detail(s): positions of non-H atoms determined, image simulation
  • Sample Detail(s): antigorite sample from U.S.A. Maryland, Baltimore County, Deligh quarry, electron microprobe analysis; 4.24 at.% Al2, 2.73 at.% Fe, 53.68 at.% Mg, 39.64 at.% Si, polycrystalline sample (determination of cell and structural parameters)

Substance Summary

  • Standard Formula: Mg39Si28O70[OH]50
  • Alphabetic Formula: Mg39O70[OH]50Si28
  • Published Formula: Mg39Si28O70(OH)50
  • Refined Formula: Mg39O120Si28
  • Wyckoff Sequence: 1,a187
  • Z Formula Units: 1
  • Density: ρ = 2.62 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

Experimental Details

Reference

3D Interactive Structure

About this content

  • Database name

    PAULING FILE Multinaries Edition – 2012

  • Dataset ID

    sd_1811873

  • 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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