fabric vs shale

fabric

noun
  • The appearance of crystalline grains in a rock. 

  • A material made of fibers, a textile or cloth. 

  • Interconnected nodes that look like a textile fabric when diagrammed. 

  • The framework underlying a structure. 

  • The texture of a cloth. 

verb
  • To cover with fabric. 

shale

noun
  • A fine-grained sedimentary rock of a thin, laminated, and often friable, structure. 

  • A shell or husk; a cod or pod. 

verb
  • To take off the shell or coat of. 

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