Phase D
Mg1.14Si1.73O6H2.81
second-order Birch-Murnaghan · Cited · 2022
V₀
85.07
ų
Unit cell
K₀
179
GPa
Isothermal
K′
4
dimensionless
Volume (V₀)
| Value | Unit | Basis | Z |
|---|---|---|---|
| 85.07 | ų | Unit cell | — |
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 | 1.14 |
| SiO2 | 1.73 |
| H2O | 1.405 |
Formula: Mg1.14Si1.73O6H2.81
Conditions & method
- Tref
- —
- Pref
- —
- Structure
- —
- Method
- experiment (XRD / DAC / multianvil compression)SCXRD in DAC
- Sample
- Wu et al. (2016)
Source
- Paper
- Structure and compressibility of Fe-bearing Al-phase D
- Authors
- Giacomo Criniti; Takayuki Ishii; Alexander Kurnosov; Konstantin Glazyrin; Rachel J. Husband; Tiziana Boffa Ballaran
- DOI
- 10.2138/am-2022-8559
- Year
- 2022
- Journal
- American Mineralogist
- Origin
- Cited (quoted from earlier work)
Evidence from the paper
Table 3: Mg1.14Si1.73O6H2.81, V0 = 85.07(4) Å3, KT0 = 179(1) GPa, K'T0 = 4 (italics, fixed), P range 0–80 GPa, SCXRD in DAC, Wu et al. (2016). Text: 'a much higher bulk modulus of 179(1) GPa, which is likely related to the use of a second-order BM EOS (i.e., KT0′ = 4)'.
Additional notes
P range GPa
0–80