Specimen Number5-1-039Alternate Number65-108Commentsporphyritic texture; close to unconformityIn Teaching CollectionNoMineral(s)feldsparhematitequartzRock NamerhyoliteDistrictAjoMineAjoExternal LinkMindatGeo-LocationundefinedSub-LocationundefinedDeposit TypePorphyry CopperThin SectionBox 1, slot 47Geo-Coords[1] Reference MaterialACL-120: Thomas, W.J., Dixon, D.W., and Couzens, T.R., 1964, AIME Guidebook, Ajo Mine, AZ section AIME Mining Geology Division.
ACL-128: Mine staff, New Cornelia Mine, 1952, Ajo Porphyry Copper, AZ Geol. Soc. Guidebook for Field Trip Excursions in southern Arizona, April 10-14, 1952, Tucson, Arizona.
5-1-039: rhyolite - Ajo District - Ajo Mine. Franklin College Collections, accessed 06/06/2026, https://digitalcollections.franklin.uga.edu/nodes/view/31361