Specimen Number46-4-024Alternate Number54-43-5CommentsTwo different ore styles, on right of photo is pitted sample with pyrolusite that is higher grade (51% Mn) than the shiny very fine-grained gray ore than runs 47-48% Mn on left of photo. Need XRD to evaluate both samples.In Teaching CollectionNoMineral(s)pyrolusiteRock NameMn oreDistrictBrazilMineFigueirinhaExternal LinkMindatDeposit TypeSedimentaryGeo-Coords[1] Donated ByUniversity of Wisconsin-Madison Department of Geoscience