Specimen Number37-2-011Alternate Number77-19-1CommentsGraywacke with sphalerite + chalcopyrite veinlets, from base of Coleman Formation above Keewatin.In Teaching CollectionNoMineral(s)quartzfeldsparsphaleritechalcopyriteRock Namemineralized graywackeDistrictTimiskamingMineSilverfieldsExternal LinkMindatDeposit TypeVeinDonated ByUniversity of Wisconsin-Madison Department of Geoscience
37-2-011: mineralized graywacke - Timiskaming District - Silverfields Mine. Franklin College Collections, accessed 13/11/2026, https://digitalcollections.franklin.uga.edu/nodes/view/56708