Gemstone world

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Across
  1. 1. a new African country for emeralds
  2. 5. the blue variety of corundums
  3. 8. the country of emerald
  4. 9. the element diamonds are made of
  5. 10. a new African country for rubies
Down
  1. 2. a scale made for mineral resistance
  2. 3. a historical blue diamond
  3. 4. the coloring element of rubies
  4. 6. found in needle inclusions, in curundums
  5. 7. mineral variety of sapphires and rubies
  6. 11. mineral variety of emerald