2. Anglesite Lead II Sulfate PbSO 4 Morocco

3. Barite Barium Sulfate BaSO 4 South Dakota

4. Titanium Dioxide TiO 2 Arkansas Brookite

5. Calcite Calcium Carbonate CaCO 3 Missouri

6. Cassiterite Tin Oxide SnO 2 China

7. Celestite Strontium Sulfate SrSO 4 Michigan

8. Cerussite Lead II Carbonate PbCO 3 Morocco

9. Chalcanthite Copper II Sulfate pentahydrate CuSO 4 5 H 2 O Arizona

10. Cinnabar Mercury II Sulfide HgS China

11. Corundum Aluminum Oxide Al 2 O 3 Pakistan

12. Cotunnite Lead II Chloride PbCl 2 Italy

13. Covellite Copper II Sulfide CuS Montana

14. Epsomite Magnesium Sulfate Spain MgSO 4

15. Fluorite Calcium Fluoride CaF 2 Russia

16. Galena Lead Sulfide PbS Bulgaria

17. Greenockite Cadmium Sulfide CdS Sweden

18. Gypsum Calcium Sulfate CaSO 4 Canada

19. Halite Sodium Chloride NaCl California

20. Hematite Iron III Oxide Fe 2 O 3 Arizona

21. Magnesite Magnesium Carbonate MgCO 3 Brazil

22. Molybdenite Molybdenum Sulfide MoS 2 Australia

23. Periclase Magnesium Oxide MgO Germany

24. Plattnerite Lead Oxide PbO 2 Mexico

25. PyriteIron II Sulfide FeS Peru

26. Pyrolusite MnO 2 Manganese Oxide Morocco

27. Quartz Silicon Dioxide SiO 2 Colombia

28. Rhodochrosite Manganese Carbonate MnCO 3 Colorado

29. Natrite Sodium Carbonate NaCO 3 Russia

30. Siderite Iron II Carbonate FeCO 3 Arizona

31. Smithsonite Zinc Carbonate ZnCO 3 Mexico

32. Strontianate Strontium Carbonate SrCO 3 Pennsylvania

33. SylvitePotassium Chloride KCl New Mexico

34. Witherite Barium Carbonate BaCO 3 Illinois