Specimen Number45-4-003Alternate Number3CommentsVery soft and punky water-laid tuff, Be-bearing. From upper manganiferous zone. Significantly clay altered, need XRD on dark matrix and pink phases.In Teaching CollectionNoMineral(s)clayRock Namealtered tuffDistrictThomas RangeMineregional sampleDeposit TypeEpithermalDonated ByUniversity of Wisconsin-Madison Department of Geoscience