Rocks and Minerals

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Across
  1. 4. a shiny, white metal used to make mirrors
  2. 5. used to make medals for Olympics champions (奧運冠軍)
  3. 6. a reddish metal used to make tools in ancient times (遠古時代)
Down
  1. 1. a rock that often contains fossils
  2. 2. a black rock mainly used as a fuel (燃料)
  3. 3. a smooth rock used to make sculptures (雕塑)