Specimen Number29-6-030Alternate NumberPS-15CommentsWelded rhyodacite tuff.In Teaching CollectionNoMineral(s)quartzfeldsparRock NamerhyodaciteDistrictWhitehallMineWest MayflowerExternal LinkMindatDeposit TypeEpithermalGeo-Coords[1] Donated ByFrom research collection of Dr. Paul Spry