Ca(Fe,Mg)(CO3)2 (CaMg0.5Fe0.5[CO3]2, p = 4.00 GPa) Crystal Structure
General Information
- Phase Label(s): CaMg0.5Fe0.5[CO3]2
- Structure Class(es): –
- Classification by Properties: –
- Mineral Name(s): ankerite/dolomite
- Pearson Symbol: hR30
- Space Group: 148
- Phase Prototype: CaMg[CO3]2
- Measurement Detail(s): automatic diffractometer; 20 (determination of cell parameters), automatic diffractometer; Picker (determination of structural parameters), X-rays, Mo Kα; λ = 0.07107 nm (determination of cell and structural parameters), p = 4.00 GPa (determination of cell and structural parameters)
- Phase Class(es): –
- Compound Class(es): carbonate
- Interpretation Detail(s): complete structure determined; pressure dependence studied, least-squares refinement; 91 reflections; I > 2σ(I), R = 0.022; wR = 0.014
- Sample Detail(s): ankerite sample from (U.S.A. Washington D.C., Smithsonian Institution), electron microprobe analysis; Ca0.997Mg0.273Fe0.676Mn0.054[CO3]2, single crystal (determination of cell parameters), single crystal, 0.050×0.050×0.075 mm3 (determination of structural parameters)
Substance Summary
- Standard Formula: CaMg0.27Fe0.73[CO3]2
- Alphabetic Formula: [CO3]2CaFe0.73Mg0.27
- Published Formula: Ca(Fe,Mg)(CO3)2
- Refined Formula: C2CaFe0.73Mg0.27O6
- Wyckoff Sequence: 148,fcba
- Z Formula Units: 3
- Density: ρ = 3.28 Mg·m−3
Crystallographic Data
Cell Parameters
Atom Coordinates
Standardized
Published
Displacement Parameters
Isotropic
Experimental Details
Reference
3D Interactive Structure
About this content
PAULING FILE Multinaries Edition – 2012
sd_1611075
©Springer & Material Phases Data System (MPDS), Switzerland & National Institute for Materials Science (NIMS), Japan, 2016
Pierre Villars, Material Phases Data System (MPDS), CH-6354 Vitznau, Switzerland
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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