MEI Blog: Official Opening of the Drakelands Tungsten-Tin Mine
Sep 17, 2015 . The Drakelands tungsten-tin mine in Hemerdon, Devon is officially opened. . Due to the high density of wolframite and the by-product cassiterite, gravity concentration dominates the . equipment (tables, spirals, DMS cyclones), there's flotation. . MEI's next conference is Process Mineralogy '17 , the 4th.