Inorganic Solid Phases

3CaO·MgO·2SiO2 (4.3 atoms per formula unit) (Ca3Mg[SiO4]2) Crystal Structure

General Information

  • Phase Label(s): Ca3Mg[SiO4]2
  • Structure Class(es):
  • Classification by Properties:
  • Mineral Name(s): merwinite
  • Pearson Symbol: mP56
  • Space Group: 14
  • Phase Prototype: Ca3Mg[SiO4]2
  • Measurement Detail(s): X-rays (determination of cell parameters)
  • Phase Class(es):
  • Compound Class(es): orthosilicate
  • Interpretation Detail(s): cell parameters determined and type with fixed coordinates assigned
  • Sample Detail(s): merwinite sample from unknown, powder (determination of cell parameters)

Substance Summary

  • Standard Formula: Ca0.92Mg0.31Si0.61O2.46
  • Alphabetic Formula: Ca0.92Mg0.31O2.46Si0.61
  • Published Formula: 3CaO·MgO·2SiO2 (4.3 atoms per formula unit)
  • Refined Formula: Ca0.92Mg0.31O2.46Si0.61
  • Wyckoff Sequence: 221,dba
  • Z Formula Units: 1
  • Density: ρ = 3.15 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_1715609

  • 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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