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Braunstein m -(e)s
gen. magnanese dioxide; pyrolustie; manganese dioxide
chem. polianite (min.); manganese dioxide (min.); manganese peroxide; min. pyrolusite; black manganese dioxide
industr., construct., chem. manganese dioxide mineral; pyrolusite
mineral. battery manganese
Braunstein: 1 phrase in 1 subject
Chemistry1