Specimen Number35-7-050Alternate Number10587CommentsFault gouge with minor pyrite.In Teaching CollectionNoMineral(s)quartzhematitepyriteRock Namefault gougeDistrictButteExternal LinkMindatGeo-LocationStope 24.Deposit 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.
35-7-050: fault gouge - Butte District - Unknown Mine. Franklin College Collections, accessed 13/11/2026, https://digitalcollections.franklin.uga.edu/nodes/view/54708