Mineral A13
Mineral A13 Images and Video
This mineral occurs in two forms, shown below in 13a and 13b. The formation of the particular mineral type depends on the chemical environment. Examine both forms.
Mineral A13a Images and Video
- Observe properties in the image(s) and video snips.
- Record your observations on the handout as instructed in class.
Mineral A13b Images and Video
- Observe properties in the image(s) and video snips.
- Record your observations on the handout as instructed in class.
Mineral A13a
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Mineral A13b
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Test Hardness - Mineral A13a
Watch the video demonstration below. Observe the close-up image after test.
Alternative Observations - Your Choice
- softer than glass; H < 5.5
- harder than glass: H > 5.5
Test Streak - Mineral A13a
Alternative Observations - Your Choice
Gray scale:
- white.....lighter to darker gray......black
Colored Scale:
- purple-ish blue-ish green-ish yellow-ish orange-ish red-ish
Test Streak - Mineral A13b
Alternative Observations - Your Choice
Gray scale:
- white.....lighter to darker gray......black
Colored Scale:
- purple-ish blue-ish green-ish yellow-ish orange-ish red-ish
Test Acid Reaction - Mineral A13a
Review property of acid reaction
Watch the video demonstration below.
Test Acid Reaction - Mineral A13b
Review property of acid reaction
Watch the video demonstration below.
Test Electrical Conductance - Mineral A13a
Review property of electrical conductance
Watch the video demonstration below.
Test Electrical Conductance - Mineral A13b
Review property of electrical conductance
Watch the video demonstration below.