Minerals

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Across
  1. 4. The building blocks of rocks
  2. 5. Molten minerals found on Earth's surface
  3. 7. When a mineral breaks along a jagged surface
  4. 8. Man-made; made in a laboratory
  5. 10. The amount of mass per unit of volume
  6. 12. A scale used to measure the hardness of a mineral
  7. 13. A soft mineral according to Mohs hardness scale
  8. 16. A substance formed from one atom; found on the Periodic Table
  9. 17. How light is reflected off a mineral's surface
  10. 18. Long and narrow mineral formations underground
  11. 19. The color of a mineral's powder
  12. 20. The hardest mineral according to Mohs hardness scale
Down
  1. 1. Molten minerals found inside the earth.
  2. 2. When a mineral breaks along flat surfaces
  3. 3. The ability of a mineral to be scratched.
  4. 6. When atoms line up in a repeating pattern
  5. 9. The process in which crystals form
  6. 11. A mixture where one substance dissolves into another
  7. 14. A hollow rock formation filled with minerals
  8. 15. Another term for mineral formation or development
  9. 16. Process when a liquid changes to a gas