Stishovite

SiO2

unknown · Cited · 2024

Why this differs from similar rows?

Table cites Yang and Wu (2014), theoretical calculation re-fit to 15 GPa/727 C; other rows cite different original studies/methods.

V₀

—

Unknown basis

K₀

290.100

GPa

Adiabatic

K′

5.020

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 ↔ Å³/f.u. conversion is not applied automatically.

Composition

Oxide	Molar
SiO2	1

Formula: SiO2

Conditions & method

T_ref: —
P_ref: —
Structure: —
Method: first-principles DFT / ab initio
Theoretical calculation (DFT, local density approximation)
Sample: —

Source

Paper: Sound Velocities of Stishovite at Simultaneous High Pressure and High Temperatu…
Authors: Sibo Chen; Siheng Wang; Xintong Qi; Man Xu; Tony Yu; Yanbin Wang; Baosheng Li
DOI: 10.1029/2023gl107700
Year: 2024
Journal: Geophysical Research Letters
Origin: Cited (quoted from earlier work)

Evidence from the paper

Table 1 (Yang and Wu (2014), Theoretical calculation): K_S0 = 290.1 GPa, K_S' = 5.02, dKS/dT = -0.027 GPa/K, G0 = 213.1 GPa, G' = 1.71, dG/dT = -0.018 GPa/K, Pmax = Re-fit to 15.0, Tmax = Re-fit to 727.

Additional notes

reference

Yang and Wu (2014)

dKS dT

-0.027 GPa/K

213.1 GPa

G prime

1.71

dG dT

-0.018 GPa/K

P max

Re-fit to 15.0 GPa

T max

Re-fit to 727 degC