Source Data files of Matsumoto et al. (2025) Nature Astronomy.

Fig2e.xlsx

Fig4.xlsx

Extended_Data_Fig6d_Carbon-XANES.txt

Extended_Data_Fig6e_Sulfur-XANES.txt

Supplementary_Fig1_XRD.csv

Supplementary_Fig3_C0071_Fe-SiAl-Mg_ternary.csv

Supplementary_Fig3_C0369-113001_Fe-SiAl-Mg_ternary.csv

Supplementary_Fig3_C0369-113002_Fe-SiAl-Mg_ternary.xlsx

Supplementary_Fig3_C0369-113003_Fe-SiAl-Mg-ternary.xlsx

Supplementary_Fig9_Na_standard.xlsx

Supplementary_Fig10_Pressure_calc.xlsx