Specimen Number32-10-020Alternate Number56-4-21CommentsContact between carbonate and granite.In Teaching CollectionNoMineral(s)dolomiteRock NamehornfelsDistrictPowderhornMineIron Hill, COExternal LinkMIndatDeposit TypeCarbonatiteGeo-Coords[1] Donated ByUniversity of Wisconsin-Madison Department of Geoscience
32-10-020: hornfels - Powderhorn District - Iron Hill, CO Mine. Franklin College Collections, accessed 13/07/2026, https://digitalcollections.franklin.uga.edu/nodes/view/53805