Phase Egg
AlSiO3OH
third-order Birch-Murnaghan · Original · 2018
Why this differs from similar rows?
Refit (in this study) of previously published powder XRD data from Vanpeteghem et al. (2003); sibling row is new single-crystal data collected in this study, a different dataset.
V₀
211.41
ų
Unit cell
K₀
155
GPa
Isothermal
K′
6.700
dimensionless
Volume (V₀)
| Value | Unit | Basis | Z |
|---|---|---|---|
| 211.41 | 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 |
|---|---|
| Al2O3 | 0.5 |
| SiO2 | 1 |
| H2O | 0.5 |
Formula: AlSiO3OH
Conditions & method
- Tref
- —
- Pref
- —
- Structure
- other / unspecified
- Method
- experiment (XRD / DAC / multianvil compression)refit of published X-ray powder diffraction data (Vanpeteghem et al. 2003) using linearized/Birch-Murnaghan EoS in this study
- Sample
- powder data of Vanpeteghem et al. (2003), refitted in this study
Source
- Paper
- High-pressure single-crystal structural analysis of AlSiO3OH phase egg
- Authors
- Kirsten Schulze; Martha G. Pamato; Alexander Kurnosov; Tiziana Boffa Ballaran; Konstantin Glazyrin; Anna Pakhomova; Hauke Marquardt
- DOI
- 10.2138/am-2018-6562
- Year
- 2018
- Journal
- American Mineralogist
- Origin
- Original (measured or fitted in the source paper)
Evidence from the paper
Table 2, 'refitted' column for Vanpeteghem et al. (2003): V0 (Å3) 211.41(11); K0 (GPa) 155(5); K′ 6.7(5). Notes: The axial compressibilities from a previous powder diffraction experiment (Vanpeteghem et al. 2003) have been recalculated in this study.
Additional notes
data source
P-V data from Vanpeteghem et al. (2003); fit performed in this study
axial moduli refitted
{
"a0": "7.136(6) Å",
"Ma0": "942(58) GPa",
"M'a": "12 (second-order Birch-Murnaghan EoS, implied fixed)",
"b0": "4.322(5) Å",
"Mb0": "226(21) GPa",
"M'b": "25(3)",
"c0": "6.930(5) Å",
"Mc0": "498(57) GPa",
"M'c": "32(7)"
}