Specimen Number42-3-004Alternate Number49-17-4CommentsMineralized transition phase between Bonneterre dolomite and La Motte sandstone. Black phase is tarnished galena with minor chalcopyrite.In Teaching CollectionNoMineral(s)quartzgalenachalcopyriteField NotesOffset Mine.Rock NamePb oreDistrictOld Lead BeltMineMine LamotteExternal LinkMindatDeposit TypeSandstone LeadGeo-Coords[1] Donated ByUniversity of Wisconsin-Madison Department of Geoscience