Rocks

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Across
  1. 2. A valuable rock
  2. 5. Raw mineral before processing
  3. 6. Cycle Rocks continuously changing
  4. 7. Become liquid through immense heat
  5. 8. Chemical decomposition of rocks
  6. 9. Black rock with lots of energy
  7. 12. Mining through tunnels
  8. 13. Type of mining a big hole (2 words)
  9. 14. The metal in modern batteries
  10. 16. Often destroyed by mining
Down
  1. 1. Changed by heat and pressure
  2. 3. Eroded rock
  3. 4. Rocks in layers
  4. 7. Location of our coal mine
  5. 9. Top layer of earth
  6. 10. Broken down by wind or water
  7. 11. The metal in wires
  8. 15. Previously molten rock
  9. 17. Improved through mining