Bridgmanite

MgSiO3

unknown · Cited · 1995

V₀

—

Unknown basis

K₀

261

GPa

Unknown

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

Composition

Oxide	Molar
MgO	1
SiO2	1

Formula: MgSiO3

Conditions & method

T_ref: —
P_ref: —
Structure: orthorhombic perovskite (Pbnm/Pnma)
Method: literature compilation / cited value
calculated (interatomic potential model, cited)
Sample: Table 7, MgSiO3 perovskite, Matsui et al. (1987)

Source

Paper: Calculation models of structures and physical properties of CaSiO3, CaMgSi2O6, …
Authors: Taketoshi Taniguchi; Masayuki Okuno; Takeo MATSUMOTΟ
DOI: 10.2465/minerj.17.290
Year: 1995
Journal: Mineralogical Journal
Origin: Cited (quoted from earlier work)

Evidence from the paper

Table 7. The calculated bulk modulus (TPa) and mean linear compressibilities (TPa-1) of atomic bonds. MgSiO3 perovskite [2]: bulk modulus / TPa 0.261; Si-O (VI) 1.15; Mg-O (XII) 1.20. [2] Matsui et al., (1987).

Additional notes

reference

Matsui et al. (1987)

mean linear compressibility Si O VI TPa-1

1.15

mean linear compressibility Mg O XII TPa-1

1.2