Specimen Number46-4-028Alternate Number61-10-1CommentsCryptomelane + pyrolusite ore with minor Fe-ox.In Teaching CollectionNoMineral(s)cryptomelanepyrolusiteFe-oxRock NameMn oreDistrictBrazilMineFigueirinhaExternal LinkMindatDeposit TypeSedimentaryGeo-Coords[1] Donated ByUniversity of Wisconsin-Madison Department of Geoscience