Across
- 3. The color of a mineral when it is broken up & powdered
- 4. A valuable substance that can be mined at a profit
- 5. Valuable minerals that are prized for their rarity & beauty
- 7. A type of carbonate with distinct colors due to trace elements found in it
- 8. Minerals that contain silicone & oxygen & usually one or more additional elements
- 10. One of the most noticeable characteristics of a mineral
- 13. A geometric solid having 4 sides that are equilateral triangles resembling a pyramid
- 14. A red gem
- 16. The way that a mineral reflects light from it's surface
- 17. Minerals that break with rough/jagged edges
- 18. Combines easily with almost all other elements and forms other mineral groups, such as carbonates
Down
- 1. Has a hardness of 10 on Mohs scale (pic to be inserted)
- 2. A naturally occurring inorganic solid with a specific chemical composition & a definite crystalline structure
- 3. The most common measure of density used by geologists
- 6. Could contaminate underground water
- 9. A mineral that splits relatively easily & evenly along one or more flat planes
- 10. A solid in which the atoms are arranged in a repeating pattern
- 11. A measure of how easy a mineral can be scratched
- 12. Hardness of 7 on Mohs scale (pic to be inserted)
- 15. How something feels