Mineral UnitEarth’s Surface Textbook Pages 43-66
During this unit we will be working toward identifying minerals by their characteristic properties such as Color, Hardness, Luster, Streak, Cleavage/Fracture (breakage), and other Unique Characteristics.

minerals-chart.jpg
Classroom Resources:



Project Resources:


Practice:

*In order to access the file below and all of its capabilities, save the file to your computer and then visit THIS website to open the smart notebook file.
*In order to access the notebook file and all of its capabilities, save the file to your computer and then visit THIS website to open the smart notebook file.


*In order to access the file below and all of its capabilities, save the file to your computer and then visit THIS website to open the smart notebook file.


Mineral Characteristics Overview and Examples:
Mineral Color
Color results from a mineral’s chemical composition, impurities that may be present, and flaws or damage in the internal structure. Unfortunately, even though color is the easiest physical property to determine, it is not the most useful in helping to characterize a particular mineral.

Mohs Hardness Scale
Hardness is a measure of how easily a mineral can be scratched.

Moh's_Hardness_Scale_Overhead1.jpg

Mineral Luster
Luster describes how light reflects from a mineral's surface.


luster.jpg

Mineral Streak
Streak is the color of the powder left by a mineral on an unglazed porcelain tile.


streak.jpg


How a Mineral Breaks:
Cleavage breaks along smooth, flat surfaces. Minerals that break with rough or jagged surfaces have fracture.

clevage.jpg
fracture.jpg
Cleavage Example
Fracture Example