Specimen Number46-8-012Alternate Number54-44-14CommentsCapping Potsdam sandstone, heavily feox stained with large secondary red/brown calcite.In Teaching CollectionNoMineral(s)quartzhematitecalciteRock NamesandstoneDistrictAntwerpMineregional sampleDeposit TypeReplacementDonated ByUniversity of Wisconsin-Madison Department of Geoscience