1. Opening quiz for unit 2  Get out you ESRT and a piece of paper  The following questions are from your ESRT.  You’ll have a minute per question…

2. Question 1  On page 16 of your ESRT what are the two main types of Luster?

3. Question 2  I am a mineral that in nonmetallic, has a hardness of around 3 and my chemical formula is CaCO 3.

4. Question 3  On page 6 of your ESRT What two types of environments of igneous rocks are there.

5. Question 4  Looking at page 7 in your ESRT what is the grainsize of Sandstone?

6. Answers 1. what are the two main types of Luster? 1.Nonmetallic and metallic 2. nonmetallic, has a hardness of around 3 and my chemical formula is CaCO 3 1.Calcite 3. What two types of environments of igneous rocks 1.Intrusive and extrusive 4. what is the grain size of Sandstone 1.0.2-0.006cm

7. Rocks & Minerals The Building Blocks of society

8. Minerals Lesson 1 Jewelry, computers, walls, and more

9. Minerals Lesson 1  What is a mineral?  How are Minerals different from rocks?  How are minerals formed?  How are minerals identified?

10. What is a mineral?  Object that’s: 1. formed naturally 2. Solid 3. internal arrangement of atoms 4. inorganic

11. Minerals  There are 1000’s of minerals out there but only a few dozen common ones.

12. How are minerals different from rocks?  Atoms form minerals  Minerals form rocks  Organized Internal Arrangement Of atoms IAOA

13. Crystals Structure Tetrahedron

14. How are minerals formed?  Minerals from solution  Cooling of magma  Heat and Pressure

15. How are minerals formed?  Precipitation from solution

16. How are minerals formed?  Evaporation from solution

17. How are minerals formed?  Cooling of magma

18. How are Minerals identified?  physical properties: color, hardness, cleavage, fracture, streak, and luster  chemical properties: reaction to acid

19. Mineral properties  Color  Luster  Texture  Streak  Hardness  Cleavage / Fracture  Density  Other

20. How are Minerals identified?  Color not a good identifier.  Some minerals have different colors  Different minerals can have the same color

21. How are Minerals identified?  Luster how the mineral reflects light. –Metallic –Nonmetallic

22. How are Minerals identified?  streak color of a mineral in its powdered form

23. How are Minerals identified?  Hardness is based on the internal arrangement of atoms  Strong bonds mean hard minerals Diamond = 10 Talc = 1

24. How are Minerals identified?  Cleavage flat, smooth, shiny, surfaces occur along weak atomic bonds  How it breaks (in shapes)

25. How are Minerals identified?  fracture uneven, rough surfaces  Breaks randomly

26. How are Minerals identified?  Reaction to acid chemical reaction to acid confirms calcite  Feel Soapy, greasy, etc.  Magnetism magnetic properties  Reacts to Ultraviolet light

27. Some minerals that glow?

29. Let’s make some minerals  We will melt down some bismuth into lava.  Then I will cool it down slowly.  Last I will drain away any extra lava