1. What are four criteria a mineral must meet to be called a mineral?
Bellwork
Get out the video notes to check.

2. Objectives
Students will be able to identify how the earth is affected by long- term and short- term geological cycles and the influence of man.
SPI Use a table of physical properties to classify minerals.
I can classify a mineral based on it's physical properties.

3. Review Mineral Video Notes
Add to table of Contents:
Mineral Video Intro pg.?
Mineral Identification Notes pg.?

4. Color
Color can be used to identify minerals; however, the same mineral can come in a variety of colors.
Is color the best way to identify a mineral? Why or why not?

5. How many minerals in this chart have the color black or gray?

6. Luster Luster: the way a surface reflects light.
Types of Mineral Luster:
Metallic: Bright and Reflective
Submetallic: dull, reflective
Nonmetallic: vitreous (glassy), silky, resinous (plastic), waxy (greasy), Pearly (creamy), earthy (rough).

7. In your Group- List three minerals with their luster.

8. Streak Streak : the color of a mineral in powdered form.
A minerals streak can be found by rubbing the mineral against a piece of unglazed porcelain called a streak plate.
The mark left on the streak plate is called the streak.

9. How many minerals have a streak that is different from their color?

10. Cleavage and Fracture
Cleavage and Fracture: different types of minerals break in different ways.
Cleavage is the tendency of some minerals to break along smooth, flat surfaces.
Fracture is the tendency of some minerals to break unevenly along curved, jagged, or irregular surface.

12. List two minerals with their cleavage or fracture.

13. Hardness Hardness: a minerals resistance to being scratched.
To determine the hardness of minerals, scientists use the Mohs Hardness Scale.
The greater the mineral’s resistance to being scratched, the higher the rating.
Mohs Hardness Scale ranges from 1 (softest) to 10 (hardest).

15. What is the hardest mineral and what is its hardness? Softest mineral?

16. Density
Density: the measure of how much matter is in a given amount of space (volume)
Formula for density : D=m/v (think of a broken heart)

17. List two minerals and the density of each.

18. Special Properties
Special Properties: characterisitcs about a mineral that only a few minerals have (or sometimes it is the only mineral that has that trait.
Examples
Fluorescence
Chemical Reactions
Magnetism
Taste
Smell

19. Find three minerals with their special property that you find interesting.

20. Exit Ticket What do you think is the BEST way to identify a mineral?
What is the WORST way to identify a mineral?