Across
- 4. 5 on the Mohs hardness scale
- 6. many crystal shapes, soft, and excellent cleavage
- 8. this - not lead - is in your pencils
- 9. black mineral with 124 and 56 degree cleavage
- 12. conchoidal fracture (no cleavage), SiO2
- 13. a bright white clay
- 14. not as yellow as gold, but still fools people
- 15. often forms dodecahedral crystals
- 17. metamorphic mineral, soft and soapy
- 18. excellent cleavage and lots of pale colors
- 19. _____ felspar, usually salmon-pink
- 21. a mica that was once used as window glass
Down
- 1. black mineral with nearly 90 degree cleavage
- 2. green color is diagnostic for this mineral
- 3. iron oxide, or "rust" for short
- 5. a native mineral, can smell like fireworks
- 7. the heaviest mineral in your tray, contains lead
- 10. black mineral that splits into sheets
- 11. fizzes in hydrochloric acid
- 14. _____ felspar, can be white or grey
- 16. likely your only magnetic mineral
- 20. this will taste salty if you lick it