Watermelon Tourmaline MCQs

 

Watermelon Tourmaline: Interactive MCQ Quiz

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

1. Which color arrangement gives a tourmaline its “watermelon” name?

A blue center surrounded by a yellow rim
A pink center with a green rim, or the reverse
A colorless center surrounded by black
Alternating red and white bands only

2. Why is this variety called watermelon tourmaline?

It grows only inside watermelons
It has the same hardness as watermelon seeds
It is cut exclusively into round shapes
Its pink and green colors resemble watermelon flesh and rind

3. Where can the pink and green parts occur?

In a single crystal
Only in separate crystals
Only after two stones are joined
Only as a surface coating

4. Which parts of a watermelon are used for comparison in the book?

The seeds and the outer skin
The leaves and the stem
The pink flesh and green rind
The roots and the flowers

5. How many colors may occur in many other tourmalines, according to the book?

Exactly one color
Two or more colors
Exactly two colors in every crystal
Only black and white

6. Up to how many different colors or shades may an individual tourmaline crystal contain?

3
5
10
15

7. Which location does the book list for watermelon tourmaline?

South Africa
Iceland
Greenland
England only

8. Which South American country is listed as an occurrence location?

Chile
Peru
Brazil
Argentina

9. Why are parti- and multicolored tourmalines carved or cut and polished?

To remove every color band
To show off their different colors to best effect
To make them change into other minerals
To hide the colors inside the crystal

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

Trigonal, calcium carbonate, hardness 3
Cubic, iron oxide, hardness 6½
Hexagonal, silica, hardness 7
Trigonal, complex borosilicate, hardness 7½