Specimen Number32-5-027Alternate NumberD98 1170CommentsOphite, cumulate plagioclase to 1 mm within ophitic pyroxene.In Teaching CollectionNoMineral(s)pyroxeneplagioclaseamphiboleRock NamegabbroDistrictKeweenawMineregional sampleExternal LinkMindatGeo-LocationCalumet & Hecla exploration hole 98, Delaware, Michigan.Sub-Location17.2' above base of flow.Deposit TypeKeweenaw CopperDonated ByUniversity of Wisconsin-Madison Department of Geoscience
32-5-027: gabbro - Keeweenaw District - regional sample Mine. Franklin College Collections, accessed 13/11/2026, https://digitalcollections.franklin.uga.edu/nodes/view/53601