Specimen Number33-1-020Alternate Number56-4-66CommentsCoarse-grained ijolite.In Teaching CollectionNoMineral(s)nephelinepyroxenemagnetiteRock NameijoliteDistrictPowderhornMineIron Hill, COExternal LinkMindatGeo-LocationBetween BC Forks.Deposit TypeCarbonatiteGeo-Coords[1] Donated ByUniversity of Wisconsin-Madison Department of Geoscience
33-1-020: ijolite - Powderhorn District - Iron Hill, CO Mine. Franklin College Collections, accessed 13/11/2026, https://digitalcollections.franklin.uga.edu/nodes/view/53855