Specimen Number47-3-007Alternate Number51-2-7CommentsPure alunite, in contrast to Big Star (47-3-001 to 006) natroalunite.In Teaching CollectionNoMineral(s)aluniteRock Namemassive aluniteDistrictHenryMineregional sampleGeo-LocationMarysvale region.Deposit TypeEpithermalDonated ByUniversity of Wisconsin-Madison Department of Geoscience