armangite
/ɑrˈmænˌdʒaɪt/Definitions
1. noun
A manganese-rich oxide mineral composed of manganese(II) carbonate with the chemical formula MnCO3.
“The geologist studied the armangite deposits found in the new mining site.”
1. noun
A manganese-rich oxide mineral composed of manganese(II) carbonate with the chemical formula MnCO3.
“The geologist studied the armangite deposits found in the new mining site.”