Beryllonite MCQs

 

Beryllonite: 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 list for beryllonite crystals?

Blue, green, or violet
Colorless, white, or pale yellow
Pink, red, or orange
Black with a metallic luster

2. Why does the book describe beryllonite as a dull gemstone?

It is always opaque
It has a dark color
It has no crystal structure
It has weak fire and low dispersion

3. Which combination makes beryllonite fragile?

Softness, perfect cleavage, and brittle fracture
High hardness and no cleavage
Strong fire and high dispersion
A metallic luster and high density

4. How may beryllonite be faceted, according to the book?

It cannot be cut at all
Only as a cabochon for everyday jewelry
Carefully, for collectors
Only after heat treatment

5. What type of mineral deposit is beryllonite associated with?

Limestone caves
Pegmatites
Coal seams
Hot-spring deposits only

6. Which minerals are named as associates of beryllonite in Maine?

Galena and sphalerite
Hematite and goethite
Calcite and dolomite
Phenakite and berylin

7. Which country is listed as a beryllonite locality?

Finland
Brazil
Namibia
Australia

8. What does the name “beryllonite” refer to, according to the book?

Its discovery in Brazil
Its pale yellow color
Its beryllium content
Its association with beryl crystals only

9. What kind of gemstones has beryllonite been confused with?

Dark, metallic gemstones
Other colorless gems with low dispersion
Pink stones with strong pleochroism
Green stones with a cat’s-eye effect

10. Which set of properties matches beryllonite in the book’s table?

Orthorhombic, barium sulfate, hardness 3
Trigonal, complex borosilicate, hardness 7½
Monoclinic, aluminum sodium hydroxyphosphate, hardness 5½
Monoclinic, sodium beryllium phosphate, hardness 5½