breun·ner·ite
| \ ˈbrȯinəˌrīt, ˈbru̇n- \
plural -s
Definition of breunnerite
1
: a ferruginous dolomite or magnesite
2
: a mineral consisting of the isomorphous system of magnesium, iron, and manganese carbonate (Mg,Fe,Mn)CO3
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