Specimen Number28-9-189Alternate NumberA-249Commentsfrom Bob Carpenter research collectionIn Teaching CollectionNoMineral(s)molybdenitequartzField Notesno location information but a good reference specimenRock Namepolished plugsDeposit TypePorphyry MolybdenumReference MaterialACL-177: Dickinson, W.R., and Payne, W.D., 1981, Relations of Tectonics to Ore Deposits in the Southern Cordillera; Ariz. Geol. Soc. Digest, Vol. XIV, 288 p.
28-9-189: polished plugs - Undefined District - Undefined Mine. Franklin College Collections, accessed 16/06/2026, https://digitalcollections.franklin.uga.edu/nodes/view/36194