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Home >> Molybdenum Mines In The Philippines

Molybdenum Mines In The Philippines

2019-5-15 · The first mining of low-grade copper porphyry deposits from large open pits coincided roughly with the introduction of steam shovels, the construction of railroads, and a surge in market demand near the start of the 20th century. Some mines exploit porphyry deposits that contain sufficient gold or molybdenum, but little or no copper.

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