Bridgmanite
Mg0.75Al0.5Si0.75O3 (estimated composition)
unknown · Cited · 2000
Why this differs from similar rows?
Table II Ref. 21 (Yusa et al.): DAC XRD experiment, methanol-ethanol-water medium, Pmax 15 GPa; sibling row is a molecular-dynamics calculation instead.
V₀
—
Unknown basis
K₀
216
GPa
Isothermal
K′
4
dimensionless
Volume (V₀)
| Value | Unit | Basis | Z |
|---|---|---|---|
| — | — | Unknown basis | — |
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 | 0.75 |
| Al2O3 | 0.25 |
| SiO2 | 0.75 |
Formula: Mg0.75Al0.5Si0.75O3
Conditions & method
- Tref
- —
- Pref
- —
- Structure
- —
- Method
- experiment (XRD / DAC / multianvil compression)DAC, polycrystalline, M-E-W medium, Pmax 15 GPa
- Sample
- —
Source
- Paper
- Compressibility of Mg<sub>0.9</sub>Al<sub>0.2</sub>Si&l…
- Authors
- Atsushi Kubo; Takehiko Yagi; Shigeaki Ono; Masaki Akaogi
- DOI
- 10.2183/pjab.76.103
- Year
- 2000
- Journal
- Proceedings of the Japan Academy Series B
- Origin
- Cited (quoted from earlier work)
Evidence from the paper
Table II: Mg0.75Al0.5Si0.75O3 (estimated composition), K = 216 (2), K' = 4, Pmax 15, DAC, PolyX, M-E-W, Ref. 21. Text: Yusa et al. ... reported K_T0 = 216 ± 2 GPa.
Additional notes
reference
Table II Ref. 21 (Yusa et al.)
note
chemical analysis of the Al-bearing perovskite was not made; composition estimated