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