jasper vs malachite

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. 

malachite

noun
  • A mild green colour, like that of the mineral. 

  • A bright green mineral, a basic copper carbonate, Cu₂CO₃(OH)₂; one of the principal ores of copper. 

adj
  • Of a colour ranging from olive-taupe to a mild to deeply-rich (at times seemingly translucent) green, like that of the mineral which is present on oxidized copper. 

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