Specimen Number46-4-010Alternate Number58-2-6CommentsDull, bluish oxide + minor cryptomelane and pyrolusite. Need XRD to evaluate bulk mineralogy.In Teaching CollectionNoMineral(s)mn-oxidecryptomelanepyrolusiteRock NameMn oreDistrictAmapa, BrazilMineSerra do NavioExternal LinkMindatDeposit TypeLateriteGeo-Coords[1] Donated ByUniversity of Wisconsin-Madison Department of Geoscience