jasper vs verdigris

jasper

noun
  • An opaque, impure variety of quartz, of red, yellow, and other dull colors, breaking conchoidally with a smooth surface. 

  • A person, a guy, especially seen as naïve or simple. 

  • Jasperware pottery. 

  • A wasp. 

verb
  • To decorate with, or as if with, jasper. 

verdigris

noun
  • The colour of this patina or material. 

  • A blue-green patina or rust that forms on copper-containing metals. 

verb
  • To cover, or coat, with verdigris. 

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