Chemical Composition of Meteorites

Manganese / Iron
MnO / Fe2O3(T) vs. Fe2O3(T) + MgO

MnO / Fe2O3(T)

The ratio of manganese to iron does not vary much within different groups of meteorites. The MnO/Fe2O3(T) ratio (or Fe/Mn or FeO/MnO) is not as reliable a test for meteorites as some sources imply, although ratios of <60 are nconsistent with lunaites and >50 are inconsistent with eucrites, for example.

See Notes, Caveats, and References


Plots for

| SiO2 | Al2O3, CaO, & CaO/Al2O3 | MgO/Fe2O3 | Fe2O3/MnO | Na2O & K2O |

| Cr | Ni | La |



Back to: Chemical Composition of Meteorites

Prepared by:

Randy L. Korotev

Department of Earth and Planetary Sciences
Washington University in St. Louis

Please don't contact me about the meteorite you think you’ve found until you read this and this.