Specimen Number47-7-003Alternate Number77-4CommentsChlorite + biotite + quartz hornfels, minor chalcopyrite.In Teaching CollectionNoMineral(s)chloritebiotitequartzchalcopyriteField NotesSample from PhD (U Michigan) of Dr. Phil Brown, longtime Professor of Geology at University of Wisconsin-Madison. Image below shows field notes associated with this sample.Rock NamehornfelsDistrictTungsten HillsMinePine CreekExternal LinkMindatGeo-Location390 level, 4th drift.Deposit TypeSkarnThin SectionBox 9, slot 47Geo-Coords[1] Donated ByUniversity of Wisconsin-Madison Department of Geoscience