Specimen Number42-8-009Alternate Number9304CommentsVarious examples of Tri-State mineralization, including coarse-grained sphalerite + chalcopyrite + pyrite, coarse-grained sphalerite, and coarse-grained calcite.In Teaching CollectionNoField NotesMine unknown, from near Joplin, MO.Rock NameZn oreDistrictTri-StateDeposit TypeMVTDonated ByUniversity of Wisconsin-Madison Department of Geoscience