Davemaoite

CaSiO3

unknown · Cited · 2025

Why this differs from similar rows?

V0 extrapolated to 0 GPa from Y. B. Wang et al. (1996) decompression data over a low-pressure range (4.1-0.6 GPa); text attributes the difference from this study's measured value to residual pressure (~1.2 GPa) in the recovered sample.

V₀

45.28

Å³

Unit cell

K₀

—

K′

—

dimensionless

Volume (V₀)

Value	Unit	Basis	Z
45.28	Å³	Unit cell	—

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
CaO	1
SiO2	1

Formula: CaSiO3

Conditions & method

T_ref: —
P_ref: —
Structure: cubic perovskite (Pm-3m)
Method: literature compilation / cited value
extrapolated to 0 GPa from decompression volume variations at low pressure from 4.1 to 0.6 GPa (cited)
Sample: decompression data of Y. B. Wang et al. (1996), 4.1 to 0.6 GPa

Source

Paper: First Observation of Quenched Davemaoite to Ambient Conditions: Its Electron Di…
Authors: Nοbuyοshi Miyajima; Lin Wang; Tomoo Katsura
DOI: 10.1029/2025gl115280
Year: 2025
Journal: Geophysical Research Letters
Origin: Cited (quoted from earlier work)

Evidence from the paper

The volume difference between 45.16(10) Å3 (evaluated in electron diffraction data in this study) and 45.28 Å3 (extrapolated to 0 GPa in the decompression data reported in Y. B. Wang et al. (1996)) originates from the residual pressure in the recovered Dvm-Bdm aggregate.

Additional notes

note

Used to estimate residual pressure of 1.2(10) GPa in the recovered Dvm-Bdm aggregate