Yellow Sapphire (Corundum) MCQs

 

Yellow 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 yellow sapphire historically called until the end of the 19th century?

Oriental peridot
Green diamantite
Oriental topaz
Sri Lankan jade

2. Which corundum color was historically called sapphire, according to the book?

Blue
Yellow
Green
Colorless

3. How does the book describe yellow and greenish yellow sapphires?

Common stones with no jewelry use
Varieties of quartz
Stones found only as crystals too small to cut
Unusual and attractive gemstones in their own right

4. Where does the book mention greenish yellow sapphire in Australia?

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

5. What does the book say may be done with greenish yellow sapphire from the named Australian locations?

It may be dissolved for pigment
It must remain uncut
It may be faceted
It can only be polished as a cabochon

6. Where does the book say similar yellow sapphire stones occur?

Thailand
Iceland
Greenland
Antarctica

7. Which set of places does the book list for pure yellow stones?

Australia, Canada, and Greenland
Thailand, Iceland, and Brazil
Myanmar, Japan, and Madagascar
Sri Lanka, Montana in the USA, and East Africa

8. Yellow sapphire belongs to which gemstone group in the book?

Beryl
Corundum
Quartz
Tourmaline

9. What composition does the book list for yellow sapphire?

Aluminum oxide
Silicon dioxide
Calcium carbonate
Magnesium silicate

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

3
7
9
10