Fun with Geoscience Trivia

1. Anhydrite, halite, and gypsum are all formed through what process?
   
           EVAPORATION


2. Lignite is a member of what sedimentary rock group?
   
           COAL


3. Which soft mineral is associated with low-grade metamorphic rocks which may have once been ultramafic in origin?
   
           TALC
   

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