Bridgmanite
(Mg0.62Fe0.38)(Al0.36Si0.64)O3
Birch-Murnaghan (order unspecified) · Cited · 2023
Why this differs from similar rows?
AO12 pseudo-dodecahedron volume from Dubrovinsky et al. (2010) with K' fixed to 4; sibling row 1159 fits K' freely for the same polyhedron.
V₀
35.84
ų
Polyhedron
K₀
246
GPa
Unknown
K′
4
dimensionless
Volume (V₀)
| Value | Unit | Basis | Z |
|---|---|---|---|
| 35.84 | ų | Polyhedron | — |
Reported value and unit are preserved as extracted. Z (formula units per cell) is not stored yet, so molar ↔ ų/f.u. conversion is not applied automatically.
Composition
| Oxide | Molar |
|---|---|
| MgO | 0.62 |
| FeO | 0.38 |
| Al2O3 | 0.18 |
| SiO2 | 0.64 |
Formula: (Mg0.62Fe0.38)(Al0.36Si0.64)O3
Conditions & method
- Tref
- —
- Pref
- —
- Structure
- orthorhombic perovskite (Pbnm/Pnma)
- Method
- experiment (XRD / DAC / multianvil compression)single-crystal X-ray diffraction (literature data)
- Sample
- Fe38-Al36-Bgm (Dubrovinsky et al. 2010), AO12 pseudo-dodecahedron polyhedral volume (K' fixed)
Source
- Paper
- Single-crystal X-ray diffraction on the structure of (Al,Fe)-bearing bridgmanit…
- Authors
- Suyu Fu; Stella Chariton; Yanyao Zhang; Takuo Okuchi; Vitali B. Prakapenka; Jung‐Fu Lin
- DOI
- 10.2138/am-2023-8969
- Year
- 2023
- Journal
- American Mineralogist
- Origin
- Cited (quoted from earlier work)
Evidence from the paper
Table 1: AO12 pseudo-dodecahedron 35.84(9) 246(5) 4 (fixed) [Dubrovinsky et al. 2010]
Additional notes
volume type
AO12 pseudo-dodecahedron polyhedral volume