Across
- 3. the bending of light rays when it travels from one medium to
- 4. a '10' on the Mohs scale of relative hardness
- 5. the study of rocks and the processes that form and transform them
- 6. calcite formations coming down from the roof of a cave
- 8. word for something that has many shapes
- 9. (opp) abrasive
- 12. the measure of the ease with which the surface of a mineral can be scratched
- 14. the property of a mineral breaking in a more or less random pattern with no smooth planar surfaces (irregular)
- 15. like the inside surface of a conch shell
- 16. a more reliable property of a mineral than color, as it does not vary
Down
- 1. resembling a sphere
- 2. form the shape in which the individual crystals grow freely
- 7. in geology, having elevations and/or depressions
- 10. a material that allows all light to pass through it
- 11. a material that allows no light to pass through it
- 13. resembling glass; refers to a glassy luster