Specimen Number47-5-019Alternate Number64-13-2CommentsMassive trona from main bed, about 1600' below surface.In Teaching CollectionNoMineral(s)tronaRock Nametrona oreDistrictWyomingMineWestvacoExternal LinkMindatDeposit TypeEvaporiteGeo-Coords[1] Donated ByUniversity of Wisconsin-Madison Department of Geoscience