δ-AlOOH
Fe/(Al+Fe) = 0.06(1)
none (not an EOS fit) · Original · 2025
V₀
57.272
ų
Unit cell
K₀
161
GPa
Adiabatic
K′
—
dimensionless
Volume (V₀)
| Value | Unit | Basis | Z |
|---|---|---|---|
| 57.272 | 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 | 0.03 |
| Al2O3 | 0.47 |
| H2O | 0.5 |
Formula: Fe/(Al+Fe) = 0.06(1)
Conditions & method
- Tref
- —
- Pref
- —
- Structure
- other / unspecified
- Method
- experiment (Brillouin / ultrasonic / elasticity)single-crystal X-ray diffraction + Brillouin scattering
- Sample
- Fe6 (run H4802)
Source
- Paper
- The effect of Fe incorporation on the single-crystal elasticity of δ-AlOOH
- Authors
- Niccolò Satta; Giacomo Criniti; Tiziana Boffa Ballaran; Alexander Kurnosov; Takayuki Ishii; Johannes Buchen; Hauke Marquardt
- DOI
- 10.1007/s00269-025-01319-7
- Year
- 2025
- Journal
- Physics and Chemistry of Minerals
- Origin
- Original (measured or fitted in the source paper)
Evidence from the paper
For Fe6, the unit-cell parameters were found to be equal to a = 4.7366(1) Å, b = 4.2463(2) Å, c = 2.8475(1) Å, and V = 57.272(4) ų ... Table 1: K^VRH (GPa) 161.0(22); G^VRH (GPa) 134.7(8) for Fe6.
Additional notes
G VRH GPa
134.7(8)
density g cm3
3.58(2)
vP km s
9.75(4)
vS km s
6.13(3)
unit cell
a = 4.7366(1) Å, b = 4.2463(2) Å, c = 2.8475(1) Å
note
Adiabatic bulk modulus from Voigt-Reuss-Hill average of Brillouin-derived cij; not from an EOS compression fit