WEEK 2 Minerals.pptxXXXXXXXXXXXXXXXXXXXX

MINERALS

1. Minerals

2. Geosphe r e

3. What are MINERALS? Defined as naturally occurring, inorganic solid with a definite chemical composition, and an ordered chemical structure. Every mineral is unique

4. There are about 3000 known minerals Minerals are made of elements (either a single element or a combination of elements) Examples of Minerals Native elements such as gold, a mineral made of one element (gold…Au) Compounds such as calcite, a mineral made of 3 elements (calcium, carbon, and oxygen…CaCO 3 )

5.  rutile

6. Naturally Occurring This Photo by Unknown Author is licensed under CC BY-NC-ND

7. Inorganic   This Photo by Unknown Author is licensed under CC BY-SA-NC

8. Solid This Photo by Unknown Author is licensed under CC BY-SA

9. Definite Chemical Co m position

10. Ordered Internal Structure This Photo by Unknown Author is licensed under CC BY-NC This Photo by Unknown Author is licensed under CC BY-NC

11. Composition of Minerals This Photo by Unknown Author is licensed under CC BY-NC-ND

12. Silicates  This Photo by Unknown Author is licensed under CC BY-SA This Photo by Unknown Author is licensed under CC BY-SA

13. Ox i d e s This Photo by Unknown Author is licensed under CC BY-SA This Photo by Unknown Author is licensed under CC BY-SA This Photo by Unknown Author is licensed under CC BY-SA

14. Sul f ides This Photo by Unknown Author is licensed under CC BY-SA-NC This Photo by Unknown Author is licensed under CC BY

15. Su l f at e s  This Photo by Unknown Author is licensed under CC BY-SA

16. Halides This Photo by Unknown Author is licensed under CC BY-NC-ND This Photo by Unknown Author is licensed under CC BY-SA This Photo by Unknown Author is licensed under CC BY-NC

17. Carbona t es This Photo by Unknown Author is licensed under CC BY-SA This Photo by Unknown Author is licensed under CC BY-SA

18. Native Metals This Photo by Unknown Author is licensed under CC BY-SA This Photo by Unknown Author is licensed under CC BY This Photo by Unknown Author is licensed under CC BY

19. Crystal Structure of Minerals

20. Physical Properties of Minerals

21. Crystal form and Habit  

22. Cleavage and Fracture  

23. Color and Streak   This Photo by Unknown Author is licensed under CC BY-SA

24. Diaphanei t y/ amount of transparency  This Photo by Unknown Author is licensed under CC BY-SA This Photo by Unknown Author is licensed under CC BY-SA This Photo by Unknown Author is licensed under CC BY-SA

25. L u s ter 

26. Hardness   This Photo by Unknown Author is licensed under CC BY-SA

27. T enacity

28. Brittleness – a mineral turns to powder

29. Malleability – a mineral can be flattened using a hammer

30. Ductility – a mineral can be stretched into wires

31. Flexible but inelastic – a mineral can be stretched but they remain in its new position This Photo by Unknown Author is licensed under CC BY

32. Flexible and elastic – a mineral can be bent and goes back to its original shape or position

33. Sectility – a mineral can be sliced by a knife

34. Density 

35. Other p r o p e r ties Magn e ti s m T as t e Effervescence F e e l

36. Special Characteristics-- the “Acid Test” / Effervescence

37. Special Characteristics-- Salty Taste  

38. Special Characteristics-- Magnetism  

39. Common Rock-Forming Minerals