Inorganic Solid Phases

(Ca0.864Na0.028Mn0.010Mg0.020Fe2+0.078)(Mg0.736Fe2+0.135Al0.020Fe3+0.092Ti0.017)(Si1.881Al0.119)O6 (Na0.015Ca0.778Mg0.846Ti0.013Mn0.012Fe0.317Al0.079Si1.94O6) Crystal Structure

General Information

  • Phase Label(s): Na0.015Ca0.778Mg0.846Ti0.013Mn0.012Fe0.317Al0.079Si1.94O6
  • Structure Class(es):
  • Classification by Properties:
  • Mineral Name(s): augite
  • Pearson Symbol: mS44
  • Space Group: 15
  • Phase Prototype: Ca0.8Mg1.2Si2O6
  • Measurement Detail(s): automatic diffractometer (determination of cell parameters), automatic diffractometer; Philips PW1100 (determination of structural parameters), X-rays, Mo Kα; λ = 0.07107 nm (determination of cell and structural parameters)
  • Phase Class(es):
  • Compound Class(es): silicate
  • Interpretation Detail(s): complete structure determined, least-squares refinement; I > 3σ(I), R = 0.0186
  • Sample Detail(s): clinopyroxene sample from Italy, Aeolian Islands, Lipari, Monte Guardia, electron microprobe analysis; 51.02(54) wt.% SiO2, 0.62(3) wt.% TiO2, 3.21(30) wt.% Al2O3, 0.01(1) wt.% Cr2O3, 9.89(45) wt.% FeO, 0.31(4) wt.% MnO, 13.76(33) wt.% MgO, 21.88(18) wt.% CaO, 0.39(3) wt.% Na2O, single crystal (determination of cell and structural parameters)

Substance Summary

  • Standard Formula: Na0.028Ca0.864Mg0.756Ti0.017Mn0.01Fe0.305Al0.139Si1.881O6
  • Alphabetic Formula: Al0.139Ca0.864Fe0.305Mg0.756Mn0.01Na0.028O6Si1.881Ti0.017
  • Published Formula: (Ca0.864Na0.028Mn0.010Mg0.020Fe2+0.078)(Mg0.736Fe2+0.135Al0.020Fe3+0.092Ti0.017)(Si1.881Al0.119)O6
  • Refined Formula: Al0.14Ca0.86Fe0.30Mg0.76Mn0.01Na0.03O6Si1.88Ti0.02
  • Wyckoff Sequence: 15,f4e3
  • Z Formula Units: 4
  • Density: ρ = 3.39 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_1231892

  • 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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