GEO101 A4

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Across
  1. 5. form by the transformation of pre-existing rocks
  2. 8. igneous texture in which crystals visible to the naked eye are embedded in a matrix of aphanitic texture
  3. 10. texture of igneous rock with a high glass content
  4. 12. form by lithification of sediment
  5. 13. a gray fine grained volcanic rock consisting of plagioclase
  6. 15. the substance that makes up the universe
  7. 16. fine grained
  8. 18. formed from the solidification of magma
  9. 19. the smallest unit of an element
Down
  1. 1. occurs within the plate far from any plate boundary
  2. 2. minerals with the same composition but different crystal structure
  3. 3. tendency of minerals to break along flat planar surfaces into geometries
  4. 4. the process that converts sediments into solid rocks
  5. 6. a dark coarse grained intrusive rock
  6. 7. most abundant mineral in the Earth's crust
  7. 9. coarse grained
  8. 10. a light colored coarse grained intrusive rock consisting primarily of quartz
  9. 11. crystals initially begin as them
  10. 14. tendency to break along other surfaces
  11. 17. a fine textured dark brown to black extrusive rock