Across
- 2. naturally occurring
- 7. geometric solid having 4 sides that are equilateral triangles
- 8. mineral that reflects light from its surface
- 9. solid which the atoms are arranged in repeating
- 10. mineral that splits relatively easyily and evenly along one or more flat surfaces
Down
- 1. measure of how easily a mineral can be scratched
- 3. gravity ratio of the mass of a substance to the mass of an equal volume of water at 4 degrees c
- 4. Minerals that contain silicon and oxygen
- 5. Color of a mineral of when it is broken up and powderd
- 6. material that forms and accumulates below Earth's surface