Fun with Geoscience Trivia

1. What name is given to substances, like carbon, that can be found in two or more forms (such as diamond or graphite)?
   
          ALLOTROPIC


2. In what period would you find the Coblentzian?
   
          DEVONIAN


3. A crystal that is in the shape of a dodecahedron has how many faces?
   
          TWELVE
   

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