Specimen Number40-6-012Alternate Number18914CommentsAmygdular basalt with calcite + copper.In Teaching CollectionNoMineral(s)pyroxeneplagioclasecalcitecopperRock NameCu oreDistrictKeweenawGeo-LocationNewport Exploration, Black River, 8 miles N of Bessemer, MI.Deposit TypeKeweenaw CopperDonated ByUniversity of Wisconsin-Madison Department of Geoscience
40-6-012: Cu ore - Keweenaw District - regional sample Mine. Franklin College Collections, accessed 12/11/2026, https://digitalcollections.franklin.uga.edu/nodes/view/57798