Metamorphic Rocks

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Across
  1. 3. Limestone
  2. 4. Type of metamorphism involving water
  3. 6. Large crystals surrounded by small grains in certain metamorphic rocks
  4. 7. Wavy
  5. 11. Result of hydrothermal alteration of mafic and ultramafic rock
  6. 12. Force that acts on a rock
  7. 14. Protolith of Schist
  8. 21. Texture of foliation
  9. 23. Mechanical changes
  10. 26. Minor hydrothermal change
  11. 27. Igneous/Metamorphic hybrid
  12. 29. Pressure unit
  13. 30. Igneous parent rock of gneiss
Down
  1. 1. Common porphyroblast
  2. 2. Quartzite & Marble
  3. 5. Important metamorphic agents
  4. 8. Difficult to identify
  5. 9. Protolith of amphibolite
  6. 10. Gneiss
  7. 11. Flat orientation of platy crystals
  8. 12. Protolith = Phyllite
  9. 13. Result of stress
  10. 14. Metamorphic source rock
  11. 15. Group of thin planar crystals
  12. 16. Sugary
  13. 17. Addition or removal of this causes changes in temperature
  14. 18. Confining
  15. 19. Typically displays banding
  16. 20. Planar alignment
  17. 21. Protolith = Shale
  18. 22. Mid-Ocean ridge rocks brought to the surface
  19. 24. Linear alignment
  20. 25. Word derived from Greek meaning "to change form"
  21. 28. Slate protolith