Jean Jacques Dozy
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Jean Jacques Dozy (1909 - November 2004) was a Dutch geologist.
In 1936, he discovered the Ertsberg ("Ore mountain" in Dutch) in Indonesia that gave rise to the Grasberg copper mine. In 1939, he published an article about his find, but it was neglected due to World War II. Twenty years later, the article led to rediscovery of the Ertsberg and the development of the Ertsberg-Grasberg mine complex.