PYROLUSITE is validvalid

native manganese dioxide, a black or dark-grey tetragonal mineral with a metallic lustre

137,777 of 196,601 in NWL2023·also valid in CSW24

native manganese dioxide, a black or dark-grey tetragonal mineral with a metallic lustre

194,803 of 280,887 in CSW24·also valid in NWL2023

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