Specimen Number46-5-024Alternate NumberPS 57-15 Mn 17CommentsFine- to medium-grained crystalline to crumbly Mn-oxides, need XRD to determine mineralogy.In Teaching CollectionNoMineral(s)mn-oxideRock NameMn oreDistrictPhilippinesMineBoholDeposit TypeSedimentaryGeo-Coords[1] Donated ByUniversity of Wisconsin-Madison Department of Geology