Minerals and Rocks

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Across
  1. 2. naturally occurring solid that can form by inorganic processes and has a crystal structure and a definite chemical composition
  2. 4. this describes the thin, flat layering found in most metamorphic rocks
  3. 6. this type of rock forms when rock fragments are squeezed together
  4. 7. not part of living things
  5. 8. the look and feel of a rock’s surface
  6. 10. type of rock formed when magma hardened under Earth's surface
  7. 11. the color of the mineral’s powder
  8. 13. when a mineral breaks apart in an irregular way
  9. 16. type of rock formed when lava erupted onto Earth's surface
  10. 17. a mixture where one substance dissolves in another
  11. 19. rounded, hollow rock that is often lined with mineral crystals
  12. 20. __________________ hardness scale is used to rank the hardness of minerals
Down
  1. 1. ____________________ rock forms when small particles of rocks or the remains of plants and animals are pressed and cemented together
  2. 3. how light is reflected from a mineral’s surface
  3. 5. _____________________ rock forms from the cooling of magma or lava
  4. 6. a property that describes a mineral splits easily flat along surfaces
  5. 9. the effects of freezing and thawing, plant roots, acid, and other forces on rock
  6. 12. particles of minerals or other rocks
  7. 14. this type of rock forms when minerals dissolve in a water solution crystallize
  8. 15. process by which sediment settles of out the water or wind carrying it
  9. 18. _____________________ rock forms when a rock is changed by heat/pressure or by chemical reactions