Inorganic Solid Phases

pyroxene (Na0.03Ca0.84Mg0.9Ti0.02Cr0.02Fe0.14Al0.16Si1.9O6) Crystal Structure

General Information

  • Phase Label(s): Na0.03Ca0.84Mg0.9Ti0.02Cr0.02Fe0.14Al0.16Si1.9O6
  • Structure Class(es):
  • Classification by Properties:
  • Mineral Name(s):
  • Pearson Symbol: mS44
  • Space Group: 15
  • Phase Prototype: Ca0.8Mg1.2Si2O6
  • Measurement Detail(s): automatic diffractometer (determination of cell parameters), automatic diffractometer; Siemens AED2 (determination of structural parameters), X-rays, Mo Kα (determination of cell and structural parameters)
  • Phase Class(es):
  • Compound Class(es): silicate
  • Interpretation Detail(s): complete structure determined, 547 reflections, R = 0.0226
  • Sample Detail(s): pyroxene group sample from Antarctica, Victoria Land, West Ross Embayment, Mt. Melbourne volcano area, electron microprobe analysis; 48.58 wt.% SiO2, 21.15 wt.% CaO, 14.28 wt.% MgO, 6.80 wt.% Al2O3, 4.29 wt.% FeO, 2.24 wt.% Fe2O3, 1.50 wt.% TiO2, 0.54 wt.% Na2O, 0.33 wt.% Cr2O3, 0.10 wt.% MnO, single crystal (determination of cell and structural parameters)

Substance Summary

  • Standard Formula: Na0.04Ca0.84Mg0.79Ti0.04Cr0.01Fe0.19Al0.3Si1.79O6
  • Alphabetic Formula: Al0.3Ca0.84Cr0.01Fe0.19Mg0.79Na0.04O6Si1.79Ti0.04
  • Published Formula: pyroxene
  • Refined Formula: Al0.30Ca0.84Cr0.01Fe0.19Mg0.79Mn0Na0.04O6Si1.79Ti0.04
  • Wyckoff Sequence: 15,f4e3
  • Z Formula Units: 4
  • Density: ρ = 3.35 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_1813234

  • 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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