Across
- 2. a more reliable property of a mineral than color, as it does not vary
- 4. word for something that has ‘many forms’
- 5. the property of a mineral breaking in a more or less random pattern with no smooth planar surfaces
- 6. word for minerals that break apart smoothly, along planes
- 8. resembling a sphere
- 11. resembling glass; refers to a glassy luster
- 13. the calcite formations coming down from the roof of a cave
- 14. this type of rock was formed when hot, molten volcanic material cooled and solidified
Down
- 1. a material that allows all light to pass through it
- 3. a material that allows no light to pass through it
- 4. the study of rocks and the processes that form and transform them
- 7. word for minerals that break apart smoothly, along planes
- 9. a '10' on the Mohs scale of relative hardness
- 10. the bending of light rays when it travels from one medium to another
- 12. the property of ‘the ease with which the surface of a mineral can be scratched’