Puzzle 35: Rocks and Minerals

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Across
  1. 2. – Small rounded stone.
  2. 4. – Extracting rocks/minerals.
  3. 7. – Igneous rock.
  4. 8. – Metamorphosed limestone.
  5. 10. – Large rock.
  6. 11. – Valuable mineral.
  7. 13. – Coarse fragments.
  8. 15. – Naturally occurring solid.
  9. 18. – Fine-grained soil.
  10. 21. – Volcanic glass.
  11. 23. – Fine-grained metamorphic rock.
  12. 24. – Rock layers.
  13. 25. – Preserved organism remains.
  14. 26. – Volcanic rock.
  15. 27. – Metamorphic rock.
  16. 28. – Ordered solid structure.
  17. 29. – Partially decayed plant material.
Down
  1. 1. – Common rock mineral.
  2. 3. – Sedimentary rock.
  3. 4. – Inorganic solid.
  4. 5. – Precious mineral.
  5. 6. – Changed by heat/pressure.
  6. 9. – Hard crystalline mineral.
  7. 12. – Flaky mineral.
  8. 14. – Mineral deposit.
  9. 16. – Loose granular material.
  10. 17. – Form crystals.
  11. 19. – Formed from magma.
  12. 20. – Formed from compressed sediments.
  13. 22. – Layered sedimentary rock.
  14. 24. – Sand-based rock.