Benitoite MCQs

 

Benitoite: Interactive Gemstone MCQ Quiz

Choose one answer for each question, then select Submit Quiz. Your score and explanations will appear below. Incorrect and unanswered questions include an explanation of the correct answer.

1. When were benitoite’s blue crystals discovered, according to the book?

1896 1906 1926 1960

2. What did the prospector first mistake benitoite crystals for?

Spinel Zircon Aquamarine Sapphire

3. How does the book describe benitoite crystal shapes?

Flattened triangles Short, stubby cubes Long, needlelike rods Rounded pebbles only

4. How does the book describe benitoite’s dispersion?

Very weak and unlike diamond Absent in all crystals Strong and similar to diamond, though masked by color Visible only in colorless specimens

5. What does the book say about benitoite’s dichroism?

It appears red or green from different angles It appears blue or colorless from different angles It is always colorless from every angle It changes permanently when turned

6. What does the book say about colorless benitoite crystals?

They are the only crystals found They are always cut for jewelry They are synthetic They occur but are rarely faceted

7. In what geological setting does the book say benitoite crystals occur?

Veins in blue schists Pegmatites in granite Alluvial gravel deposits Rhyolite flows

8. What locality is given as the sole source of benitoite?

Brazil Myanmar San Benito County, California Sri Lanka

9. What is the name “benitoite” derived from?

The name of the prospector San Benito County, California A Greek word for blue The name of a crystal shape

10. What composition does the book list for benitoite?

Calcium phosphate Beryllium aluminum silicate Tin oxide Barium titanium silicate