Specimen Number35-7-046Alternate Number10582CommentsMassive chalcocite + pyrite + quartz.In Teaching CollectionNoMineral(s)chalcocitepyritequartzRock NameCu oreDistrictButteDeposit 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.
35-7-046: Cu ore - Butte District - Unknown Mine. Franklin College Collections, accessed 11/11/2025, https://digitalcollections.franklin.uga.edu/nodes/view/54704