Rocks

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Across
  1. 4. when a mineral breaks in rough or jagged ways
  2. 6. the scale used to determine the hardness of minerals
  3. 7. naturally occurring inorganic solid with a definite chemical composition
  4. 12. the placement/accumulation of broken down rock
  5. 14. rock that forms from deposition, compaction, and cementation
  6. 16. rock subtype that forms from magma
  7. 17. process that includes deposition, compaction and cementation
  8. 18. rock that forms from extreme heat
Down
  1. 1. the breaking down of exposed rocks on Earth's surface by wind, water, ice, or biological activity
  2. 2. rock subtype that forms from lava
  3. 3. solid with atoms, molecules, or ions are arranged in a highly ordered, repeated pattern
  4. 5. rock subtype that has distinct lines
  5. 8. rock that forms from magma or lava
  6. 9. how light reflects off the surface of minerals
  7. 10. when a mineral breaks in smooth, clean lines
  8. 11. rock subtype that does not have distinct lines
  9. 13. the movement of broken down rock
  10. 15. a type of testing used on minerals to determine their hardness