Industry
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Sulphur Bank Mine also produced quicksilver and became one of the most noted producers in the world. First worked for sulphur in 1865, it produced a total of 2,000,000 pounds in four years. Reopened and developed for quicksilver in 1873, it was credited with a total output of 92,400 flasks. It was an important producer during World War I and II.
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Clearlake Oaks, California · United States
