Specimen Number31-8-004Alternate Number83-3-4CommentsOlivine gabbro. See card (below) for description of olivine phenocryst orientation.In Teaching CollectionNoMineral(s)olivinepyroxenechromiteplagioclaseRock NamegabbroDistrictBird RiverExternal LinkMindatGeo-LocationBird River Sill, Manitoba.Deposit TypeMagmaticDonated ByUniversity of Wisconsin-Madison Department of Geoscience
31-8-004: gabbro - Bird River District - Unknown Mine. Franklin College Collections, accessed 13/11/2026, https://digitalcollections.franklin.uga.edu/nodes/view/53266