Across
- 2. A soft sulfate mineral often used in plaster.
- 5. The natural mineral form of sodium chloride, known as rock salt.
- 7. A group of rock-forming tectosilicate minerals.
- 9. A precious yellow metallic element.
- 10. A common metallic element, essential for many organisms.
Down
- 1. A soft, black, crystalline form of carbon.
- 3. A carbonate mineral and the most stable polymorph of calcium carbonate.
- 4. The hardest known natural material.
- 6. A common mineral often found in rocks.
- 8. A precious white metallic element.