Specimen Number32-10-031Alternate Number56-4-37CommentsCarbonate replaced by silica, weathered.In Teaching CollectionNoMineral(s)quartzhematiteRock Namealtered carbonateDistrictPowderhornMineIron Hill, COExternal LinkMIndatGeo-LocationTop of hill, North Mass.Deposit TypeCarbonatiteGeo-Coords[1] Donated ByUniversity of Wisconsin-Madison Department of Geoscience
32-10-031: altered carbonate - Powderhorn District - Iron Hill, CO Mine. Franklin College Collections, accessed 13/11/2026, https://digitalcollections.franklin.uga.edu/nodes/view/53816