Silicate Earth composition by Pyrolite model based on peridotites (compounds)

Source: McDonough W.F., Sun S.-s. The composition of the Earth, Chemical Geology 120 (1995) 223-253.

oxideunitsvalue
SiO2pt45
TiO2pt0.201
Al2O3pt4.45
Cr2O3pt0.384
MnOpt0.135
FeOpt8.05
NiOpt0.25
MgOpt37.8
CaOpt3.55
Na2Opt0.36
K2Opt0.029
P2O5pt0.021