Specimen Number36-4-025Alternate Number52-33-1CommentsGranitic gneiss host rock. One face is a vein selvage with abundant pyrite.In Teaching CollectionNoMineral(s)k-sparquartzhornblendepyriteRock Namemineralized gneissDistrictIdaho SpringsExternal LinkMindatGeo-LocationSpecific mine within district unknown.Deposit TypeVeinDonated ByUniversity of Wisconsin-Madison Department of Geoscience