Danburite MCQs

 

Danburite: Interactive MCQ Quiz

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

1. Which colors does the book mention for danburite?

Blue, green, and black
Red, orange, and violet
Usually colorless, but sometimes yellow or pink
Always brown

2. What shape do danburite crystals form?

Wedge-shaped prisms
Rounded botryoidal masses
Flat hexagonal plates
Short black rhombohedra

3. Which gemstone does danburite’s crystal shape resemble?

Emerald
Ruby
Calcite
Colorless topaz

4. How does danburite’s cleavage compare with topaz’s?

Both have perfect cleavage
Danburite has poor cleavage; topaz has perfect cleavage
Danburite has perfect cleavage; topaz has poor cleavage
Neither mineral has cleavage

5. What does the book say about danburite’s specific gravity compared with topaz?

It is higher than topaz’s
It is always exactly the same
It is lower than topaz’s
The book says it cannot be compared

6. Where was danburite first found, according to the book?

Danbury, Connecticut
Pala, California
Tsumeb, Namibia
Paraiba, Brazil

7. Which country is listed as a source of gem-quality danburite?

Iceland
England
Canada
Mexico

8. What composition does the book list for danburite?

Aluminum silicate
Calcium borosilicate
Beryllium aluminum oxide
Strontium sulfate

9. What hardness does the book list for danburite?

3
5
7
9

10. How does the table describe danburite’s luster?

Vitreous to greasy
Metallic
Adamantine
Dull only