Australia's National Gemstone - The Opal

15 Points Per Correct Answer - No time limit  

1. Where is the opal capital of the world? Virgin Valley, Nevada Queretaro, Mexico Coober Pedy, Australia Vernon, British Columbia

2. No two opals are the same. True False

3. What is a Gilson opal? Another name for potch An opal found on Ernie Gilson's property A synthetic opal An extremely valuable opal from Gilson, an outback town

4. What sort of opal should be used when making a ring? all of these are acceptable a doublet solid stone a triplet

5. Name the process of collecting uncut opals from the mounds of rock that have already been extracted? dry blowing canoodling noodling panning

6. What is a triplet opal? An opal mined with a specific drill An opal with three different layers An opal with three different colours An opal mined with three strategically placed explosives

7. Is opal a precious gemstone or a semi-precious gemstone? Answer: (precious or semi-precious)

8. Which is the most valuable type of opal in the world? White opal Crystal opal Boulder opal Black opal

9. Putting your opal out in a lightning storm will improve the colour. True False

10. What birthstone does opal represent? October July February December