Across
- 2. A hard mineral often used in jewelry.
- 3. A naturally occurring volcanic glass.
- 6. A fine-grained sedimentary rock.
- 8. A smooth, polished rock used in sculptures and buildings.
- 9. A rock made of compacted sand particles.
Down
- 1. A hard, durable rock commonly used in countertops.
- 4. A dark-colored, volcanic rock.
- 5. A soft, white limestone used in writing and drawing.
- 7. A sedimentary rock often used in construction.
- 10. A fine-grained rock often used for roofing.