coal mine vs quarry

coal mine

noun
  • A mine from which coal ore or coal minerals are mined. 

quarry

noun
  • A site for mining stone, limestone, or slate. 

  • An animal, often a bird or mammal, which is hunted. 

  • An object of search or pursuit. 

  • A diamond-shaped tile or pane, often of glass or stone. 

verb
  • To secure prey; to prey, as a vulture or harpy. 

  • To obtain (or mine) stone by extraction from a quarry. 

  • To extract or slowly obtain by long, tedious searching. 

How often have the words coal mine and quarry occurred in a corpus of books? (source: Google Ngram Viewer )