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They were just farmers digging by hand, until they discovered the world’s rarest opal
At almost 10,000 feet above sea level, villagers in northern Ethiopia have uncovered a seam of pure black opal buried within hand-dug tunnels. The site, hidden in Wollo Province’s rugged terrain, is ...
Far above northern Ethiopia’s patchwork fields, villagers in Wollo have uncovered a rich, natural black opal deposit almost 9,800 feet above sea level. Their tunnels follow a single opal-bearing clay ...
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