Akimotoite
(Mg0.44,Fe0.56)SiO3 (enstatite mole fraction 0.44)
Murnaghan · Original · 2007
V₀
—
Unknown basis
K₀
273
GPa
Adiabatic
K′
—
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
| Oxide | Molar |
|---|---|
| MgO | 0.44 |
| FeO | 0.56 |
| SiO2 | 1 |
Formula: (Mg0.44Fe0.56)SiO3
Conditions & method
- Tref
- —
- Pref
- —
- Structure
- ilmenite (akimotoite)
- Method
- experiment (shock wave)shock-wave Hugoniot data reduced to isentrope; composition corrected via 'molar additivity of Phi' rule
- Sample
- Eclogite S (Sunnmore, Norway), derivative composition (Table 3)
Source
- Paper
- On the Occurrence of (Mg, Fe)SiO3 in the Lower Mantle
- Authors
- E. K. Graham
- DOI
- 10.1111/j.1365-246x.1975.tb06463.x
- Year
- 2007
- Journal
- Geophysical Journal of the Royal Astronomical Society
- Origin
- Original (measured or fitted in the source paper)
Evidence from the paper
Table 3. ... Eclogite S ... Derivative composition: Enstatite Mole Fraction 0.44, rho (g cm-3) 4.30, K0^S (Mbar) 2.73, Phi (km s-1)^2 63.4
Additional notes
rho0
4.30 g cm-3
Phi
63.4 (km s-1)^2