Green Sapphire (Corundum) MCQs

 

Green Sapphire (Corundum): Interactive MCQ Quiz

Choose one answer for each question, then select Submit Quiz. Your score and explanations will appear below.

1. What was green sapphire historically called?

Oriental emerald
Sri Lankan jade
Oriental peridot
Green diamantite

2. During which period was green sapphire known as “oriental peridot”?

From medieval times until the end of the 19th century
Only during the 20th century
Only in ancient Rome
From the beginning of the 21st century

3. What may produce the green appearance in many sapphires, according to the book?

A solid layer of green paint on the surface
Alternating bands of red and yellow sapphire
Green sapphire mixed with quartz
Fine alternating bands of blue and yellow sapphire

4. Under what viewing condition may the alternating color bands be visible?

Only in complete darkness
Under a microscope
Only after the stone is heated
Only when viewed through water

5. Which country does the book list as a source of green sapphire?

Thailand
Iceland
Egypt
Canada

6. Which island country is listed as an occurrence location for green sapphire?

Madagascar
New Zealand
Sri Lanka
Cuba

7. Which two Australian states does the book mention for green sapphire?

Victoria and Tasmania
Queensland and New South Wales
Western Australia and South Australia
Northern Territory and Victoria

8. Green sapphire belongs to which mineral group in the book?

Beryl
Quartz
Tourmaline
Corundum

9. What composition is listed for green sapphire?

Aluminum oxide
Silicon dioxide
Calcium carbonate
Magnesium silicate

10. What hardness does the book list for green sapphire?

3
7
9
10