Zambia’s Grizzly Mining achieves economy of scale with Bell B50Es

The existence of emerald deposits in Zambia dates to the 1920s but it was only in the 1970s and 1980s, once prospecting and mining techniques had developed, that mining started taking place. Today the country is the world’s second-largest producer of emeralds, a gemstone more than twenty times rarer than diamonds, and mining efficiently is just as important as it was when emerald mining first started.