Specimen Number46-5-026Alternate Number57-15 Mn 223CommentsGroutite crust on manganite, museum-quality specimen, need XRD to confirm both phases.In Teaching CollectionNoMineral(s)manganitegroutiteRock NameMn oreDistrictCuyuna RangesMineregional sampleDeposit TypeBIFDonated ByUniversity of Wisconsin-Madison Department of Geoscience