Specimen Number35-7-001Alternate Number70-2-11CommentsGranite.In Teaching CollectionNoMineral(s)quartzk-sparorthoclaseamphibolepyritechalcopyriteField NotesNo mine specified, so can only say for sure that samples are from "Butte".Rock Namemineralized granodioriteDistrictButteDeposit TypePorphyry CopperDonated ByUniversity of Wisconsin-Madison Department of GeoscienceReference MaterialACL-125: Miller, R.N., ed., 1973, Guidebook for the Butte Field Meeting of Society of Economic Geologists, Butte, Montana, August 18-21, 1973.
35-7-001: mineralized granodiorite - Butte District - Unknown Mine. Franklin College Collections, accessed 17/11/2025, https://digitalcollections.franklin.uga.edu/nodes/view/54627