Ferropericlase
(Mg,Fe)O; atomic ratio Fe/(Fe+Mg) = 2f
unknown · Cited · 2001
V₀
—
Unknown basis
K₀
162.500
GPa
Adiabatic
K′
4.130
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
(Mg,Fe)O; atomic ratio Fe/(Fe+Mg) = 2f
Conditions & method
- Tref
- 290 K
- Pref
- —
- Structure
- B1 rocksalt (Fm-3m)
- Method
- literature compilation / cited valueadopted literature values (MgO: Jackson & Niesler 1982; FeO: Jackson et al. 1990) with linear variation along MgO-FeO join
- Sample
- Table 5, adopted mineral properties for composite fitting
Source
- Paper
- Compositional constraints on the equation of state and thermal properties of th…
- Authors
- Frank D. Stacey; Donald G. Isaak
- DOI
- 10.1046/j.1365-246x.2001.00437.x
- Year
- 2001
- Journal
- Geophysical Journal International
- Origin
- Cited (quoted from earlier work)
Evidence from the paper
Table 5. Mineral properties at P=0, T=290 K: Magnesiowustite, K' = 4.13, K (GPa) = 162.5, rho = 3209(1+1.402f-0.244f^2) kg m^-3. 'The values of K and K'0 for MgO (Jackson & Niesler 1982) and FeO (Jackson et al. 1990) are well documented... we assume that K and K'0 vary linearly with the iron content along the MgO-FeO join.'
Additional notes
density expression
rho (kg m^-3) = 3209(1+1.402f-0.244f^2)
note
Fe/(Fe+Mg) in magnesiowustite assumed to be 2f (twice that of coexisting Mg-Fe perovskite)