Specimen Number9-8-012CommentsFrom Bob Carpenter research collection. Massive chalcocite with pyrite, mine unknown.In Teaching CollectionNoMineral(s)chalcocitepyriteRock NameCu oreDistrictButteDeposit TypePorphyry CopperReference MaterialACL-125: Miller, R.N., ed., 1973, Guidebook for the Butte Field Meeting of Society of Economic Geologists, Butte, Montana, August 18-21, 1973.
9-8-012: Cu ore - Butte District - Undefined Mine. Franklin College Collections, accessed 06/06/2026, https://digitalcollections.franklin.uga.edu/nodes/view/38123