Specimen Number35-9-006Alternate Number338ICommentsVein wall material, dense, difficult to discern if it's porphyry or graywacke.In Teaching CollectionNoMineral(s)quartzfeldsparField NotesSample collected by F.S. Turneaure, who published widely on the deposits.Rock Namealtered porphyryDistrictBoliviaMineSiglo VeinteExternal LinkMindatGeo-LocationParalela vein, 128 level.Deposit TypeVeinGeo-Coords[1] Donated ByUniversity of Wisconsin-Madison Department of Geoscience
35-9-006: altered porphyry - Bolivia District - Siglo Veinte Mine. Franklin College Collections, accessed 13/11/2026, https://digitalcollections.franklin.uga.edu/nodes/view/54739