Across
- 7. One of the not-so-common minerals that we rely on everyday
- 8. Rarely found in nature in its uncombined form
- 11. Inorganic crystalline structure
- 12. Used in most magazines
- 13. A polymorph of the element carbon
- 14. Often thought of as a mineral but it really a rock composed of aluminum oxide and hydroxide minerals
- 16. Fourth most common metal in use
Down
- 1. Formed from lava that is full of gas
- 2. The Illinois State Mineral
- 3. One of the more common minerals in sedimentary environments
- 4. A natural magnet
- 5. Can easily be distinguished by its taste
- 6. An important ore of iron
- 7. Common and popular mineral of rock hounds
- 9. One of the largest mines in the world
- 10. A common sedimentary rock-forming mineral that can be found in massive beds several hundred feet thic
- 15. An important industrial mineral