Specimen Number31-8-001Alternate Number83-3-1CommentsVery fine-grained gabbro, likely basal chill zone, approximately 50' above base of sill contact.In Teaching CollectionNoMineral(s)pyroxenechloritephlogopiteRock NamegabbroDistrictBird RiverExternal LinkMindatGeo-LocationBird River Sill, Manitoba.Deposit TypeMagmaticDonated ByUniversity of Wisconsin-Madison Department of Geoscience
31-8-001: gabbro - Bird River District - Unknown Mine. Franklin College Collections, accessed 13/11/2026, https://digitalcollections.franklin.uga.edu/nodes/view/53263