1. Mineral Review
Chapter 13

2. Bell Work 9/17/2015
Get your comp. book and a white paper from the front table!
Glue this paper on page 20 of your comp. book!!!

3. Today’s Goal: Identify the different properties of minerals.
Explain how mineral properties can be used to identify unknown minerals.
Describe how to use the Mohs Hardness Scale to determine the hardness of a mineral.
SPI
Chapter 13

4. 1. If a mineral has perfect cleavage, it
Breaks easily
Breaks along smooth surfaces
Scratches smooth surfaces
Scratches easily

5. 2. Which of the following is true?
Some minerals have no crystal structure
Some minerals are liquids
Minerals are rarely formed in nature
Minerals are always solids

6. 3. Which of the following is one way to tell which of two minerals is harder?
The harder mineral will mark a penny.
The harder mineral will attract a magnet.
The harder mineral will scratch the softer one.
The harder mineral cannot be scratched by steel.

7. 4. The color of a mineral when it is ground into a powder is its
Fracture
Cleavage
Luster
Streak

8. 5. The best way to tell a pyrite sample from a gold sample of similar size is to compare their
Colors
Luster
Densities
Bonds

9. 6. When you say a mineral is “metallic”, you are talking about its
Streak
Luster
Hardness
Fracture

10. 7. Quartz, feldspar, and mica are all common
Elements
Carbonates
Oxides
Silicates

11. 8. Determining the manner in which a mineral breaks is helpful when
Identifying the mineral
Making the mineral
Changing the mineral’s composition
Mining the mineral

12. 9. The two major types of mineral luster are
Metallic and nonmetallic
Shiny and dull
Glossy and metallic
Dull and glossy

13. 10. To identify a mineral, scientists may scratch a mineral against a surface. The color of powder left behind is the
Element
Streak
Luster
Fluorescence

14. 11. A quartz sample breaks into many irregular pieces
11. A quartz sample breaks into many irregular pieces. This is an example of
Fracture
Cleavage
Density
Streak

15. 12. Which mineral is the softest?
MOHS Scale of Hardness
Talc
Gypsum
Calcite
Fluorite
Apatite
Feldspar
Quartz
Topaz
Corundum
Diamond
Your fingernail has a hardness of about 2.5
A steel file has a hardness of 6.5
Gypsum
Quartz
Calcite
Talc

16. 13. Which mineral can scratch gypsum but not fluorite?
MOHS Scale of Hardness
Talc
Gypsum
Calcite
Fluorite
Apatite
Feldspar
Quartz
Topaz
Corundum
Diamond
Your fingernail has a hardness of about 2.5
A steel file has a hardness of 6.5
Talc
Calcite
Apatite
Gypsum

17. 14. Is topaz harder or softer than a steel file?
MOHS Scale of Hardness
Talc
Gypsum
Calcite
Fluorite
Apatite
Feldspar
Quartz
Topaz
Corundum
Diamond
Your fingernail has a hardness of about 2.5
A steel file has a hardness of 6.5
Harder
Softer

18. 15. Is Feldspar harder or softer than Topaz?
MOHS Scale of Hardness
Talc
Gypsum
Calcite
Fluorite
Apatite
Feldspar
Quartz
Topaz
Corundum
Diamond
Your fingernail has a hardness of about 2.5
A steel file has a hardness of 6.5
Harder
Softer

19. The Mohs Hardness Scale

20. it could not scratch the
Explain why a steel file could not be used to tell the difference between a sample of topaz and a sample of quartz.
MOHS Scale of Hardness
Talc
Gypsum
Calcite
Fluorite
Apatite
Feldspar
Quartz
Topaz
Corundum
Diamond
Your fingernail has a hardness of about 2.5
A steel file has a hardness of 6.5
A steel nail is softer
than both samples so
it could not scratch the
samples.

21. What am I?
I’m a solid formed in nature with a definite chemical makeup and crystal structure.
Mineral

22. I’m the way in which light reflects from the surface of a mineral.
What am I?
I’m the way in which light reflects from the surface of a mineral.
Luster

23. I’m a mineral that contains only one type of element.
What am I?
I’m a mineral that contains only one type of element.
Native Mineral

24. I’m the tendency of a mineral to break along flat surfaces.
What am I?
I’m the tendency of a mineral to break along flat surfaces.
Cleavage

25. I’m the tendency of a mineral to break into irregular pieces.
What am I?
I’m the tendency of a mineral to break into irregular pieces.
Fracture

26. I’m a mineral’s resistance to being scratched.
What am I?
I’m a mineral’s resistance to being scratched.
Hardness