Rock Types
Vocab
Earth History
Minerals
Miscellaneous
100

2 X 5

10

100

3 x 7

21

100

4 x 9 

36

100

5 x 7 

35

100

4 x 8 

32

200

6x 7

42

200

9 x 3 

27

200

6 x 9 

54

200

6 x 4 

24

200

9 x 8 

72

400

Fossils are found mostly in this type of rock.

What is a sedimentary rock?

400

In a sedimentary rock, these are the distinct layers of sediments.

What is strata?

400

This era includes the Cretaceous period, the Jurassic period, and the Triassic period.

What is the Mesozoic Era?

400

This is the second most common group of rock-forming minerals.

What are carbonates?

400

This is a carbonate mineral.

What is calcite?

500

This rock type is foliated.

What is a metamorphic rock?

500

This is the origin of the word "luster".

What is Latin?

500

Bright Angel Shale deposited during this period.

What is the Ordovician period?

500

This is the color of feldspar's streak.

What is white?

500

This makes up about 90% of the rocks in earth's crust, and is the most common rock-forming minerals.

What are silicates?

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