Rocks crossword puzzle

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Across
  1. 2. Type of rock
  2. 5. Type of metamorphic rock
  3. 6. Type of sedimentary rock
  4. 8. A rock formed by water
  5. 10. A valuable rock formed by graphite or coal.
Down
  1. 1. A way a metamorphic rock can be
  2. 3. A famous block in Minecraft, obviously!
  3. 4. Intrusive and Felsic rock
  4. 6. Type of rock
  5. 7. Type of rock
  6. 9. Extrusive and Mafic rock