Fluorite MCQs

 

Fluorite: 10 Interactive MCQs

Choose one answer for each question, then select Submit Quiz. Incorrect answers include a clear explanation based on the book.

1. What composition does the book list for fluorite?

Zinc sulfide Iron sulfide Calcium fluoride Magnesium aluminum oxide

2. What hardness does the book give for fluorite?

4 6 8 10

3. Why does fluorite have limited use as a gemstone?

It is always opaque It is too rare to cut It has no color varieties It is relatively soft and easily scratched

4. Which statement about fluorite’s colors matches the book?

It is only yellow or brown It occurs in several colors, and one specimen may contain more than one It is always colorless It is only green when found in nature

5. What does the book say about the distribution of color in some fluorite?

Color is always evenly distributed Color appears only on the surface Color may be zoned or patchily distributed Color occurs only in the center of every specimen

6. What cleavage does the book describe for fluorite?

Perfect octahedral cleavage No cleavage Three good cleavages One easy cleavage in thin sheets

7. Why may a fluorite cabochon be capped with rock crystal?

To make it change color To hide its color zoning To increase its cleavage To protect it from scratches

8. What is Blue John?

A blue variety of spinel from Sri Lanka A purple-and-yellow-banded variety of fluorite from England A green grossular from South Africa A colorless variety of quartz from China

9. How did the ancient Egyptians use fluorite, according to the book?

Only as a currency To make glass imitations In statues and carved scarabs To polish diamonds

10. For how long does the book say fluorite has been used in Chinese carvings?

More than 300 years About 50 years Since 1910 More than 3,000 years