Obscure Gemstones II

15 Points Per Correct Answer - No time limit  

1. While you may be familiar with black onyx, what country, formerly known as Persia, is the largest producer of white onyx? India Turkey Madagascar Iran

2. Rubellite, watermelon and indicolite are variations of which gemstone? Spinel Tourmaline Zircon Beryl

3. Which of the following is a beautiful red opaque gemstone that has been used for centuries to make cameos and beads, and is often found in Egyptian tombs? Carnelian Jadite Lapis Lazuli Mother-of-pearl

4. Ekanite is a very unusual gemstone for which of the following reasons? It is tricolor It is radioactive It is only found in meteorites It bends like rubber

5. Malachite is a popular gemstone that comes in which lucky color? Green Black Orange Purple

6. Which gemstone comes in varieties such as mandarin, rhodolite, and demantoid? Spinel Garnet Jade Diamond

7. Which of these gemstones is often called a water sapphire? Kunzite Iolite Scapolite Chrysoberyl

8. Which very valuable blue gemstone was found in 1967 in an east Africa and has been found nowhere else? Zambite Congoite Tanzanite Nigerite

9. One of the most valuable gemstones on the market, what was the national stone of tsarist Russia? Olgaite Anastasite Alexandrite Tatianite

10. Sapphire (corundum) comes in almost every color of the rainbow. When it is red it is called by what different name? Bloodstone Ruby Garnet Fire opal