Specimen Number46-4-014Alternate Number58-2-11CommentsImpure Mn-oxide with minor pyrolusite. Some white clay and minor Fe-oxide. Characterized as gonditic ore.In Teaching CollectionNoMineral(s)mn-oxidepyrolusiteclayFe-oxRock NameMn oreDistrictAmapa, BrazilMineSerra do NavioExternal LinkMindatDeposit TypeLateriteGeo-Coords[1] Donated ByUniversity of Wisconsin-Madison Department of Geoscience