Geol 1403 HCC - Central

Common Rock Forming Minerals

1. quartz

2. orthoclase feldspar

3. plagioclase feldspar

4. muscovite mica

5. biotite mica

6. hornblende

7. pyroxene

8. olivine

10. calcite

Common Ore Minerals

14. chalcopyrite

15. hematite

16. pyrite

17. galena

18. magnetite

19. limonite

20. sphalerite

Other Minerals

9. gypsum

11. dolomite

12. halite

13. chlorite

21. garnet

22. sulfur

23. graphite

24. talc