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  1. 1. Rocks and Minerals<br />By Matthew Castelo<br />10/4/11<br />
  2. 2. Amethyst <br />A rock that is a type of quartz. <br />
  3. 3. Quartz<br />Quartz is a type of crystal that is used to manufacture glass. <br />
  4. 4. Copper<br />A mineral used in wires and electric switches<br />