Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Geology > Dynamic Interior L2 > Flashcards

Dynamic Interior L2 Flashcards

1
Q

What is a mineral?

A

A naturally occurring crystalline inorganic material with a definite, but not necessarily fixed chemical composition

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Where does diamond rank on the Mohs Hardness Scale?

A

10

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Where does quartz rank on the Mohs Hardness Scale?

A

7

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Where does a steel nail rank on the Mohs Hardness Scale?

A

6.5

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Where does a fingernail rank on the Mohs Hardness Scale?

A

2.5

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Where does talc rank on the Mohs Hardness Scale?

A

1

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What are the 7 crystal systems?

A

Cubic
Tetragonal
Hexagonal
Trigonal
Orthorhombic
Monoclinic
Triclinic

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What is a unit cell?

A

The smallest unit which, when repeated in 3-D, will build the crystal structure.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What are the corners of a unit cell called?

A

Nodes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What is a space lattice?

A

A 3D array of corner points (nodes)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What is the value of an atom shared between 2 units cells?

A

1/2

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What is the value of an atom shared between 8 unit cells?

A

1/8

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What is the value of an atom shared between 4 unit cells?

A

1/4

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What is twinning?

A

Where two separate crystals are intergrown and share some common points in the crystal lattice.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What is a twin plane?

A

The surface between the two crystals by which atoms are arranged symmetrically.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What are the 4 types of twinning?

A

Rotational twinning
Simple twinning
Multiple/lamellar twinning
Cyclic twinning

17
Q

What is cleavage?

A

The tendency of minerals to split along crystallographic planes.

18
Q

What is a cleavage plane?

A

The crystallographic plane at which a mineral breaks.

19
Q

What are two types of cleavage planes?

A

Single
Multiple

20
Q

What is an example of a type of mineral that displays a single cleavage plane?

A

Sheet silicates e.g. mica

21
Q

What are 2 examples of minerals that display multiple cleavage planes?

A

Pyroxene and amphibole

22
Q

What is the chemical formula of a silicate anion?

A

[SiO4]4-

23
Q

What does the exchange of ions with similar ionic radii into a crystal lattice produce?

A

Isomorph / isomorphous series

Geology (17 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions