Specialist: gemstones

From the quiz on 28/10/14.

  1. Which continent produces over 50% of the world’s diamonds? Africa

  2. Amethyst, citrine and tiger’s eye are all varieties of which mineral? Quartz

  3. After how many years of marriage is a ruby wedding anniversary celebrated? 40

  4. What name, from the French for “head”, is given to a gem that has been polished but not faceted? Cabochon

  5. Which green semiprecious stone takes its name from the Spanish for “flank”, reflecting the old belief that it could cure colic and other side pains? Jade


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