Specimen Number34-7-027Alternate Number18774CommentsBarren limestone.In Teaching CollectionNoMineral(s)calciteField NotesAlternate #'s 18765-18775 is a set showing alteration from porphyry intrusion into Escabrosa limestone. The porphyry is massive and unoxidized. The siliceous material near the limestone is oxidized as is the mineralized portion of the limestone.Rock NamelimestoneDistrictBisbeeMineLowellExternal LinkMindatGeo-Location13th level.Deposit TypeReplacementGeo-Coords[1] Donated ByUniversity of Wisconsin-Madison Department of Geoscience
34-7-027: limestone - Bisbee District - Lowell Mine. Franklin College Collections, accessed 14/11/2026, https://digitalcollections.franklin.uga.edu/nodes/view/54278