Specimen Number40-7-006Alternate Number77-4-7CommentsVery fine-grained tuff.In Teaching CollectionNoMineral(s)quartzfeldsparmuscovitepyriteRock NametuffDistrictAlgomaMineGeorge W. MacLeodExternal LinkMindatDeposit TypeBIFGeo-Coords[1] Donated ByUniversity of Wisconsin-Madison Department of Geoscience
40-7-006: tuff - Algoma District - George W. MacLeod Mine. Franklin College Collections, accessed 13/11/2026, https://digitalcollections.franklin.uga.edu/nodes/view/57814