Phase D
Al1.53(2)Fe0.22(1)Si0.86(1)O6H3.33(9)
third-order Birch-Murnaghan · Original · 2022
Why this differs from similar rows?
This study's BM3 fit with V0 fixed to the room-pressure value measured in-house via 8-position centering; sibling rows either refine V0 freely or fix a different measurement.
V₀
83.703
ų
Unit cell
K₀
164.900
GPa
Isothermal
K′
4.530
dimensionless
Volume (V₀)
| Value | Unit | Basis | Z |
|---|---|---|---|
| 83.703 | 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 |
|---|---|
| Fe2O3 | 0.11 |
| Al2O3 | 0.765 |
| SiO2 | 0.86 |
| H2O | 1.665 |
Formula: Al1.53Fe0.22Si0.86O6H3.33
Conditions & method
- Tref
- —
- Pref
- —
- Structure
- other / unspecified
- Method
- experiment (XRD / DAC / multianvil compression)single-crystal X-ray diffraction in DAC (synchrotron, He medium)
- Sample
- single crystal, this study (V0 fixed to in-house 8-position centering value)
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
- Original (measured or fitted in the source paper)
Evidence from the paper
Table 2: BM3, 0–38 GPa, V0 = 83.703b (b: 'Fixed to the value determined at room pressure in house using the 8-position centering method'), KT0 = 164.9(10) GPa, K'T0 = 4.53(10).
Additional notes
P range GPa
0–38
V0 fixed in fit
True
a0 A
4.7465 (fixed)
Ma0 GPa
536(6)
M'a0
12.3(6)
c0 A
4.2900 (fixed)
Mc0 GPa
424(3)
M'c0
14.9(4)