A rock or mineral from which a useful or metal can be extracted is referred to as a(an)

Question

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An ore is a rock or mineral from which a useful or valuable metal can be extracted through various metallurgical processes. Ores contain a concentration of the desired metal or element, making them economically viable for extraction.

Answer: D 
 Economic minerals are minerals that have an economic value and are able to be extracted and sold for a profit. Ores are a type of economic mineral as they can be processed to extract valuable metals or minerals.

A Rock or Mineral from Which a Useful or Metal