1. “Identifying Minerals”
Chapter 1 – Section P. 8-11
Vocabulary:
Luster Streak
Cleavage Hardness
Fracture Density

2. Color P. 8 1) A variety of colors
Mineral Examples:
Topaz
Garnet
All the same minerals can come in what…
1) A variety of colors

3. Color is the best way to identify a mineral2) :
TRUE or
FALSE
Color is the best way to identify a mineral
p. 8

4. 3) The way in which a mineral
p. 8
Lets define
Luster!
3) The way in which a mineral
reflects light

5. different types of luster.
Metallic
4)There are THREE
different types of luster.
What are they?
Nonmetallic
Submetallic

6. 5) The color of the powder of a mineral.
Streak P. 9
6) A mineral’s
streak is not
affected by
air or water,
which makes
this property
more reliable
than color.
5) The color of the powder of a mineral.

7. What is the difference between Cleavage and Fracture?
p. 9
Kevin Ware’s X-Ray of 2013 injury
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 or irregular surfaces
Definitely UNEVEN!!!
What is the difference between Cleavage and Fracture?
Cleavage = Fracture =

8. = breaks into distinct sheets
p. 9
Name Examples Of Minerals…
Mica
= breaks into distinct sheets
= fractures in a curved pattern called conchoidal fracture
Quartz
= breaks at 90º angles in three directions
Halite

9. A mineral’s resistance to being scratched
p. 10

10. A scale, ranging from 1 to 10, where the mineral’s number indicates its relative hardness. A mineral of a given hardness will scratch any mineral that is softer than it is.
Examples of the Hardness of other substances
See the next slide for the actual scale and minerals
p. 10

11. Are you able to guess correctly?

12. Density D = M / V Density = Mass Divided by Volume
*Or basically, the measure of how much matter is in a given amount of space.
____________________________________ pp
D = M / V
p. 10

13. What is……..
p. 10
the substance that is the usual reference point for the density of other substances?
And it’s density is?
     
1.00 g/cmᵌ
& Specific Gravity?

14. Special Properties
p. 11
As some properties are particular to only a few types of minerals, they can often help you quickly identify the minerals.
Examples:

15. Summary p.11
Properties that can be used to identify minerals are color, luster, streak, cleavage, fracture, hardness, and density
Some minerals can be identified by special properties they have, such as taste, magnetism, fluorescence, radioactivity, chemical reaction, and optical properties.

16. Section Review p.11
Do the following:
1- 8
Remember
to observe
H.W.S.