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2.5 Minerals Lessson

Last updated over 2 years ago
18 questions
Do Now, Agenda, Annoucements
Required
0

I, the student completing this lesson, have looked at my grade in RDS for this class and I notice nothing incorrect.

0

Other announcements to add...

Critical Thinking
Required
4

What do you think caused this to happen?

Recap
Required
4
Draggable itemCorresponding Item
sedimentary
fossils
metamorphic
heat and pressure
igenous
volcano lava
Required
4

Some relative dating techniques include...

What makes a mineral a mineral?
You will need to know all of these characteristics, and what each of them individually means.
Required
1

Plastic is a mineral.

Required
8

Justify your answer using the 5 characteristics of minerals.

Identification Part 1
We often use flow charts with these qualities of known minerals to identify the mineral. Here is one that you will be using.
Required
1

A mineral can often leave a streak that doesn't match the outside color.

Identification Part 2
Required
4

A fracture is a random jagged breaking of the mineral.

What sets a cleavage apart?

There are many mineral cleavages, here are some of the more common types to be on the lookout for.
Required
4

You smash a rock with a hammer and this is one of the pieces.

8

Justify your answer.

Identification Part 3
Required
4
Draggable itemCorresponding Item
If the mineral scratched a fingernail, and penny, but not glass, its hardness would be
below 2.2
If the mineral did not scratch a fingernail, its hardness would be
between 3.2 and 5.5
Mineral XY scratches glass but not the streak plate, its hardness would be
above 7
If the mineral scratched the streakplate, its hardness would be
between 5.5 and 7
Required
8

In your own words, describe why color alone is not a good way to identify a mineral.

Identification Practice
Required
4

Using the flow chart...

The mineral has a metallic luster, it's not magnetic, silver in color, harder than a fingernail, and leaves a red-brown streak.

What mineral is it?

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4

Using the flow chart...

The mineral leaves a white streak, no cleavage when broken, a non-metallic luster, and it is softer than a steel nail.

What mineral is it?

Required
4

Using the flow chart...

The mineral leaves a white streak, no cleavage when broken, a non-metallic luster, and it is softer than a fingernail.

What mineral is it?

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1

Ice is a mineral.

Required
8

Justify your answer.