2024-10-112024-10-11https://hdl.handle.net/11299/266219Hard oreUS Steel Corporation / Ralph Marsden Iron Ore CollectionCountry = USAState = MinnesotaCounty = St LouisLocality = Virginia DistrictUniversity of Minnesota DuluthBox # = 45Storage Box # = 23US Steel Corporation / Ralph Marsden Iron Ore Collection - Sample #103Image