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Test Your Gem IQ   Answer these questions correctly and you will win a gem screensaver.
1. In Hawaii, you can walk upon a beach composed of millions of tiny grains of this gemstone:
  Peridot
  Garnet
  Citrine
  Spinel
2. Which of the following gemstones is NOT pleochroic (different colors in different directions?)
  Andalusite
  Tanzanite
  Iolite
  Spinel
3. The ancient city of Ur had a flourishing trade in this gemstone as early as the fourth millenium BC.
  Amber
  Opal
  Coral
  Lapis Lazuli

Yes, these are my final answers!

 
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