The Composition of Mn-Rich Igneous Chondrule Rims in CO3 Chondrites

This dataset shows thirteen measured oxides across four chondrite samples with varying petrologic types. Analyses are from pyroxene grains from twelve chondrules and related Mn-rich chondrule rims. This dataset is used to understand how these pyroxene Mn-rich rims formed on chondrules in CO3 chondrites. The related paper is focused on interpreting the implications this has for the composition of nebular dust in the protoplanetary nebula.