Specimen Number48-2-022Alternate Number77-139CommentsGranodiorite-calcsilicate contact.In Teaching CollectionNoMineral(s)quartzk-sparplagioclaseamphibolebiotitepyroxeneField NotesSample from PhD (U Michigan) of Dr. Phil Brown, longtime Professor of Geology at University of Wisconsin-Madison. Copy of field notes shown in photo below.Rock NamegranodioriteDistrictTungsten HillsMinePine CreekExternal LinkMindatGeo-LocationBrownstoneDeposit TypeSkarnGeo-Coords[1] Donated ByUniversity of Wisconsin-Madison Department of Geoscience