Earth Science Chapter 9 (Minerals And Ores)

Question 1

At one time aluminum was more valuable than…

Answer 1

Gold

Question 2

Why is liquid water not a mineral but ice is a mineral?

Answer 2

Liquid water is not a solid.
Minerals must be solid.

Question 3

Name 4 Characteristics of a Mineral:

Answer 3

1. Naturally occurring
2. Inorganic
3. Crystalline solid
   4.
   Definite Chemical Composition

Question 4

The mineral cinnabar, also called mercury sulfide, is an important source or ore of…

Answer 4

Mercury

Question 5

A mineral with only one kind of atom is a…

Answer 5

Native mineral

Question 6

What is the difference between compounds and native minerals?

Answer 6

Compounds are minerals that are composed of two or more elements. Native minerals have only one element.

Question 7

The following are native minerals:

Answer 7

Sulfur, platinum, gold, diamond, and silver

Question 8

Minerals are considered matter because they have mass and take up…

Answer 8

Space

Question 9

Why is seawater a mixture?

Answer 9

Because seawater has different ratios of materials.

Question 10

Two or more substances physically combined, not chemically bonded are called a…

Answer 10

Mixture

Question 11

A geologist who studies and identifies mineral samples, is called a…

Answer 11

Mineralogists

Question 12

The test that provides the best example of a mineral’s color is the…

Answer 12

Streak Test

Question 13

Some minerals are too hard to leave a… ? …on a streak plate.

Answer 13

Streak

Question 14

A mineral’s crystalline classification deals mostly with its…

Answer 14

Shape

Question 15

The color of a mineral’s powder is called its…

Answer 15

Streak

Question 16

A mineral’s streak is more… ? …than it’s apparent color.

Answer 16

Reliable

Question 17

The process by which a crystal grows is called…

Answer 17

Accretion

Question 18

What scale measures hardness of a mineral?

Answer 18

Mohs

Question 19

Minerals which are very… ? …are a 1 on the hardness scale and those which are hard are a 10.

Answer 19

Soft

Question 20

The ratio of the density of a specimen to the density of water at 4 degrees Celsius is called…

Answer 20

Specific gravity

Question 21

When you conduct an acid test on a mineral sample, you are watching for…

Answer 21

Gas bubbles

Question 22

A mineral is a good resource even if it is only…

Answer 22

Beautiful

Question 23

The types of mineral that are most likely found in placer deposits are…

Answer 23

Native minerals

Question 24

The best conductor of electricity is…

Answer 24

Silver

Question 25

What property of copper makes it a good material for plumbing pipes?

Answer 25

When copper tarnishes, a tough surface layer forms. This layer seals out oxygen and resists further corrosion.

Question 26

Diamond is composed of…

Answer 26

Carbon

Question 27

A carat is a unit of…

Answer 27

Mass

Question 28

What is the most abundant class or family of minerals?

Answer 28

Silicates

Question 29

Any mineral that is made of oxygen is called an…

Answer 29

Oxide

Question 30

Fool’s gold, a mineral of iron and sulfur is classified as a…

Answer 30

Sulfides

Question 31

Which method is the most common for obtaining minerals and ores?

Answer 31

Mining

Question 32

Obsidian, a mineral of volcanic origin, breaks in smooth curved surfaces. What type of fracture does it have?

Answer 32

Conchoidal

Question 33

Are you ready for the test?

Answer 33

Yes