Crystals

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Across
  1. 1. Eight on the Mohs scale
  2. 3. Peacock ore is also called...
  3. 6. The study of crystallization
  4. 8. How many nobel prizes have been awarded to crystallographers
  5. 11. The oldest zircon crystal is _.4 billion years old
  6. 12. Language used by Indo-europeans
  7. 13. The green type of corundum is also known as the stone of...
  8. 16. What is corundum on the Mohs scale
  9. 17. What was the second shape of crystals we said
  10. 18. The Kohinoor Diamond is _ thousand years
  11. 19. Five on the Mohs scale
Down
  1. 1. How manygroups of crystals are there?
  2. 2. King of Precious Gems
  3. 4. Taaffeite has been found in Sri lanka and...
  4. 5. One of the thigs that makes saphire blue is...
  5. 7. Mohs scale of ...
  6. 9. The official crystal of tasmania
  7. 10. How many shapes of crystals are there?
  8. 14. The rarest crystal in the world
  9. 15. Ten on the Mohs scale
  10. 17. When bornite is _____ it is a pink, orange and red