Raines, Ed2018-09-212022-02-032018-09-212022-02-03https://hdl.handle.net/11124/172505Ed Raines, a geologist, mineralogist, and mining historian, talks about the history of the Gilman mining district. This lecture provides an overview of the mineralization in this area and includes information about zinc ores, zinc, and brass, as well as information about the New Jersey Zinc Company. Ed also explains the history and importance of metallurgical processes, such as froth flotation, and discusses some of the commercial uses of zinc and brass.57 minutes 3 secondslecturesengCopyright of the original work is retained by the author.Zinc -- Colorado -- Eagle CountyMines and mineral resources -- HistoryMines and mineral resources -- Colorado -- Eagle CountySilver -- Colorado -- Eagle CountySphalerite -- Colorado -- Eagle CountyFlotationBrassAzeotropesLimestone -- Colorado -- Eagle CountyMineral industries -- Colorado -- Eagle CountyGilman Mining District (Colo.)New Jersey Zinc CompanyMovingImage