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Enstatite MCQs

on September 28, 2026

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Enstatite: Interactive MCQ Quiz

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

1. Which mineral family does enstatite belong to?

Beryl family
Pyroxene family
Corundum family
Tourmaline family

2. Which compositional range does the book describe for the pyroxene series?

Calcium- to aluminum-rich carbonates
Barium- to strontium-rich sulfates
Copper- to zinc-rich oxides
Magnesium- to iron-rich silicates

3. What crystal form may enstatite take, although it is rare?

Short prisms
Long, wedge-shaped prisms
Flat, tabular plates only
Rounded cubic masses

4. From what material is most gem-quality enstatite faceted?

Large crystals from pegmatites
Thin slices of massive rock
Rolled pebbles
Fibrous layers

5. Which color range does the book describe for cuttable enstatite?

Pale blue to violet
Gray, yellowish or olive green, to iron-rich brownish green
Pink to red only
Colorless to white only

6. What does the book say colors the brilliant emerald-green variety of enstatite?

Cobalt
Cadmium
Manganese
Chromium

7. Where is enstatite often found with kimberlites?

South Africa
Sri Lanka
Italy
Japan

8. Which location is listed for brownish green enstatite?

Namibia
Australia
Norway
England

9. What optical effect is noted for some Sri Lankan and Indian enstatite?

Color change
Chatoyancy, or a cat’s-eye effect
A six-rayed star
Iridescence on every crystal

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

Trigonal, complex borosilicate, hardness 7½
Orthorhombic, aluminum silicate, hardness 7½
Orthorhombic, calcium carbonate, hardness 3½
Orthorhombic, magnesium iron silicate, hardness 5½

Location: Pakistan

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Enstatite MCQs

Enstatite: Interactive MCQ Quiz

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