Specimen Number32-10-028Alternate Number56-4-31CommentsAltered granite near contact with pyroxenite.In Teaching CollectionNoMineral(s)k-sparquartzamphibolehematiteRock Namealtered graniteDistrictPowderhornMineIron Hill, COExternal LinkMIndatGeo-LocationStone Gulch.Deposit TypeCarbonatiteGeo-Coords[1] Donated ByUniversity of Wisconsin-Madison Department of Geoscience
32-10-028: altered granite - Powderhorn District - Iron Hill, CO Mine. Franklin College Collections, accessed 13/11/2026, https://digitalcollections.franklin.uga.edu/nodes/view/53813