matthews rocks

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Across
  1. 3. formed above ground with fast cooling and small crystals (9)
  2. 4. texture of marble with layered patterns (8)
  3. 5. appearance of granite; pink, white, or black (9)
  4. 11. central region of Ireland with limestone (8)
  5. 14. sandstone use in surfaces and building (6)
  6. 17. another mountain range with granite (6)
  7. 18. formed from compressed sea creature remains (9)
  8. 19. formed when rock changes due to heat or pressure (11)
  9. 21. horizontal layers in sedimentary rock (6)
  10. 23. formed from compressed sand in rivers or deserts (9)
  11. 24. formed underground with slow cooling and large crystals (9)
  12. 30. source of black marble in Ireland (8)
  13. 31. formed from sandstone exposed to heat/pressure (9)
  14. 33. metamorphic rock from limestone (6)
  15. 34. process of compression and cementation of sediments (12)
  16. 35. visible remains in limestone (7)
  17. 36. granite use in kitchens and interiors (8)
Down
  1. 1. formed from compacted sediment in layers (11)
  2. 2. common use of basalt in construction (5)
  3. 6. region known for green marble (9)
  4. 7. colour of sandstone due to iron (7)
  5. 8. extrusive rock formed from surface lava; tiny crystals (6)
  6. 9. Irish mountains with sandstone (13)
  7. 10. Irish mountain made of quartzite (9)
  8. 12. marble used in carving and sculpture (12)
  9. 13. famous karst area with exposed limestone (6)
  10. 15. basalt location in Northern Ireland (6)
  11. 16. mountain with quartzite (13)
  12. 20. one of many uses of limestone (10)
  13. 22. mineral group in basalt with potassium and aluminium (8)
  14. 25. Giant’s Causeway is made of basalt columns (8)
  15. 26. mineral that makes up quartzite (6)
  16. 27. formed from cooled magma or lava (8)
  17. 28. Irish location where granite is found (7)
  18. 29. intrusive rock made of silica and feldspar with large crystals (7)
  19. 32. quartzite used in manufacturing glass (5)