Rocks and Minerals - Kyle Rider

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Across
  1. 4. what is the way a mineral reflects light
  2. 5. a geometric solid having four sides that are equilateral triangles
  3. 7. a rock formed by magma
  4. 8. what is a mineral that is mostly used in jewelry
  5. 9. occurs when a reaction with hydrochloric acid causes calcite in limestone to fizz
  6. 12. a mineral that can be mined for profit
  7. 13. what type of rock will you find in a river?
  8. 15. a play of colors, caused by the bending of light rays
  9. 17. the way a mineral is formed when the solution they are in evaporates
  10. 18. what is number 1 on the Mohs scale
  11. 19. the ratio of the mass of a substance to a mass of an equal volume of water at 4 degrees Celsius
  12. 20. a compound of oxygen and metal
Down
  1. 1. the measure of how easily a mineral can be scratched
  2. 2. minerals that contain silicon and oxygen
  3. 3. one or two metallic elements and the ion C03(2-)
  4. 6. number 10 on the Mohs scale
  5. 10. when a mineral breaks along jagged lines
  6. 11. when a mineral splits evenly along one or more flat planes
  7. 14. the porcelain plate, you use to find chemical composition
  8. 16. the continuous changing of rocks