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A miner carries blocks of sulfur from Ijen crater in Banyuwangi, on the Indonesian island of Java. The sulfur is used for vulcanizing rubber, bleaching sugar and other industrial processes.

This Photo taken on February 1, 2014 shows a miner carrying blocks of sulphur from Ijen crater in Banyuwangi East Java. A miner can weigh from 45 to 90kg and might make as many as two or three trips in a day. The sulfur is then used for vulcanizing rubber, bleaching sugar and other industrial processes.SONNY TUMBELAKA / AFP - Getty Images