Rocks retrieved from a mine in Muzo, Colombia, show some of what makes the country the biggest producer of high-value emeralds. (Carlos Saavedra for NPR) MUZO, Colombia — Although he has helped ...
MUZO, Colombia — Although he has helped transform Colombia's emerald industry, long a source of violence and environmental damage, former U.S. diplomat Charles Burgess admits that he got into the ...
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