Across
- 3. the powder left behind on a porcelain tile
- 4. a minerals resistance to being scratched
- 6. a mineral that is light green and granular
- 8. rock salt is made of the mineral..
- 9. mineral that is red and used in jewelry
- 13. a rock made of round pebbles
- 14. rock type made of once living things
- 16. a rock made of angular pebbles
- 17. a mineral with metallic luster+ cubic cleavage
Down
- 1. a mineral with a composition of S
- 2. a rock made of cemented sand grains
- 5. sedimentary rock made of particles or grains
- 7. a rock made of shell fragments
- 10. a mineral that bubbles with acid
- 11. rock type made of crystals
- 12. a mineral commonly called fools gold
- 15. rock type formed when water evaporates