Stishovite
SiO2
Birch-Murnaghan (order unspecified) · Cited · 2003
V₀
—
Unknown basis
K₀
291
GPa
Unknown
K′
4
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 |
|---|---|
| SiO2 | 1 |
Formula: SiO2
Conditions & method
- Tref
- —
- Pref
- —
- Structure
- rutile-type (stishovite)
- Method
- experiment (XRD / DAC / multianvil compression)powder X-ray diffraction in diamond anvil cell (previous study)
- Sample
- previous study (Andrault et al. 1998), Pt pressure standard (Jamieson et al. 1982 Pt EoS)
Source
- Paper
- Equation of state of stishovite to lower mantle pressures
- Authors
- D. Andrault; R. J. Angel; J. L. Mosenfelder; Tristan Le Bihan
- DOI
- 10.2138/am-2003-2-307
- Year
- 2003
- Journal
- American Mineralogist
- Origin
- Cited (quoted from earlier work)
Evidence from the paper
These new values deviate significantly from those obtained in our previous study, K0 = 291 GPa and K'0 = 4]. As mentioned above, this is due to the previous use of an inaccurate Pt-EoS that underestimates the experimental pressures.