Across
- 4. formed from pre-existing rocks or pieces
- 6. formed when hot molten rock solidifies or crystallizes
- 8. formed as another type of rock then into its final form
- 10. natural planes of weakness
- 11. when a sample breaks to irregular shapes
- 12. how easily a mineral can be scratched
Down
- 1. how a mineral reflects light
- 2. the shade a mineral appears to be
- 3. how well a mineral attracts to a magnet
- 5. the toughness of a mineral
- 7. the color of the mineral if in powder form
- 9. how well you can see the mineral