Specimen Number46-4-009Alternate Number58-2-5CommentsCryptomelane with pyrolusite lining cavities.In Teaching CollectionNoMineral(s)cryptomelanepyrolusiteRock NameMn oreDistrictAmapa, BrazilMineSerra do NavioExternal LinkMindatDeposit TypeLateriteGeo-Coords[1] Donated ByUniversity of Wisconsin-Madison Department of Geoscience