I, the student completing this lesson, have looked at my grade in RDS for this class and I notice nothing incorrect.
Other announcements to add...
| Draggable item | arrow_right_alt | Corresponding Item |
|---|---|---|
metamorphic | arrow_right_alt | fossils |
igenous | arrow_right_alt | heat and pressure |
sedimentary | arrow_right_alt | volcano lava |
Plastic is a mineral.
Justify your answer using the 5 characteristics of minerals.
A mineral can often leave a streak that doesn't match the outside color.
A fracture is a random jagged breaking of the mineral.
What sets a cleavage apart?
You smash a rock with a hammer and this is one of the pieces.
Justify your answer.
| Draggable item | arrow_right_alt | Corresponding Item |
|---|---|---|
Mineral XY scratches glass but not the streak plate, its hardness would be | arrow_right_alt | below 2.2 |
If the mineral scratched the streakplate, its hardness would be | arrow_right_alt | between 3.2 and 5.5 |
If the mineral did not scratch a fingernail, its hardness would be | arrow_right_alt | above 7 |
If the mineral scratched a fingernail, and penny, but not glass, its hardness would be | arrow_right_alt | between 5.5 and 7 |
In your own words, describe why color alone is not a good way to identify a mineral.
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?
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?
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?
Ice is a mineral.
Justify your answer.
Some relative dating techniques include...