2. Before we begin our new chapter…
Please fold a triangle divider into your notebooks and write the following on it: Chapters 2 & 3 – Rocks and Minerals

3. Try to keep your notebooks organized like this…

4. I. Minerals What is a Mineral? Naturally occurring Inorganic solid
Not man made
Inorganic solid
Does not come from something that was once living
Has a crystal structure
The particles of a mineral, or crystals, are arranged in certain patterns.
Composed of different elements

7. I. Minerals How can we identify minerals? Hardness Color Streak Luster
Mohs Hardness Scale
Color
Easily observed property; can only be used for minerals that have the same color consistently (all the time)
Streak
The color of a mineral’s powder; found by rubbing the mineral on a blank tile called a streak plate
Luster
The reflectivity of the mineral; is it shiny, dull, glassy, metallic?
Density
The mineral’s mass per unit…regardless of size, density remains the same

8. Let’s Practice Identifying Mineral Properties
Mica
Sulfur

9. Let’s Practice Identifying Mineral Properties
Galena
Quartz

10. HOMEWORK Read Chapter 2, Section 1 (pages 46-54)
Index Cards for bold vocabulary words found on pages 46-54
Section 1 Review, question # 1 and 5