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the U.S. is the largest producer of gold in the world. ancient peoples collected gold in considerable amounts. gold was first mined in the U.S. in the mid-1700s. governments keep the production of gold under control.
is made would make was to be made had made
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gold supplies are judged to be shrinking gradually. dentistry demands more gold now than ever before. the yield of gold has been increasing since mid-1950s. gold has been highly valued as a strategic material.
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Surface coatings of gold protect earth satellites from radiation. Most of the world’’s refined gold is used for currency backing. The world’’s largest gold mine is located in South Dakota. The mining of gold can be traced back to the feudal age.
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