Phase D
MgSi1.5Fe3+0.15Al0.3H2.6O6
unknown · Cited · 2016
V₀
—
Unknown basis
K₀
253
GPa
Unknown
K′
—
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 | 1 |
| Fe2O3 | 0.075 |
| Al2O3 | 0.15 |
| SiO2 | 1.5 |
| H2O | 1.3 |
Formula: MgSi1.5Fe3+0.15Al0.3H2.6O6
Conditions & method
- Tref
- —
- Pref
- —
- Structure
- other / unspecified
- Method
- experiment (XRD / DAC / multianvil compression)high-pressure X-ray diffraction (as cited from Chang et al. [2013])
- Sample
- FeAl-bearing phase D of Chang et al. [2013] (ΣFe3+/Fe = 0.94)
Source
- Paper
- Two‐stage spin transition of iron in FeAl‐bearing phase D at lower mantle
- Authors
- Xiang Wu; Ye Wu; Jung‐Fu Lin; Jin Liu; Zhu Mao; Xinzhuan Guo; Takashi Yoshino; Catherine McCammon; Vitali B. Prakapenka; Yuming Xiao
- DOI
- 10.1002/2016jb013209
- Year
- 2016
- Journal
- Journal of Geophysical Research Solid Earth
- Origin
- Cited (quoted from earlier work)
Evidence from the paper
But the property of LS-Fe3+ phase D is of large uncertainty, for example, the larger error in the bulk modulus of 253(30) GPa [Chang et al., 2013].
Additional notes
spin state
low-spin Fe3+ (LS-Fe3+ phase D)
reference
Chang et al. [2013]
note
Cited literature value; HS-to-LS crossover of Fe3+ observed between 40 GPa and 65 GPa in that study