Specimen Number46-1-013Alternate Number49-80-11CommentsQuartz + Mn-oxide ore; Mn-oxide is fine-grained single to clotted spherules, quartz is interstitial to the Mn-oxide.In Teaching CollectionNoMineral(s)mn-oxidequartzRock NameMn oreDistrictSodavilleMineBlack JackExternal LinkMindatDeposit TypeEpithermalGeo-Coords[1] Donated ByUniversity of Wisconsin-Madison Department of Geoscience