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.

Observe Luster - Mineral A13a

Review property of luster

Watch the video demonstration below.

Observe Luster - Mineral A13b

Review property of luster

Watch the video demonstration below.

Test Hardness - Mineral A13a

Review property of hardness

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 Hardness - Mineral A13b

Review property of hardness

Watch the video demonstration below.

Test Streak - Mineral A13a

Review property of streak

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

Review property of streak

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 Magnetism - Mineral A13a

Review property of magnetism

Watch the video demonstration below.

Test Magnetism - Mineral A13b

Review property of magnetism

Watch the video demonstration below.

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.