Chapter 2 Mineralogy

QUESTION # 1 (EASY):

It is the systematic study that extensively covers the description, crystallography, physical, chemical, and environmental features of all minerals.

• Mineralogy

• Symmetry

• Crystallography

• Petrology

QUESTION # 2 (EASY):

It is the fundamental property of the orderly arrangements of atoms found in crystalline solids.

• Color

• Luster

• Symmetry

• Streak

QUESTION # 3 (EASY):

It describes the appearance of a mineral when light is reflected from its surface.

• Cleavage

• Streak

• Luster

• Color

QUESTION # 4 (EASY):

It refers to the color of the mineral in its powdered form, which may or may not be the same color as the mineral.

• Color

• Streak

• Cleavage

• Hardness

QUESTION # 5 (EASY):

It is a solid, homogeneous, orderly array of atoms and may be nearly any size.

• Rock

• Crystal

• Aggregate

• Soil

QUESTION # 1 (MODERATE):

Which of the following is not a characteristic of a mineral?

• Crystal Structure

• Inorganic

• Solid

• Luster

Answer explanation

Luster is a way of identifying mineral not a characteristic of mineral.

QUESTION # 2 (MODERATE):

Minerals are used to produce all of the following materials except:

• Sugar

• Dyes

• Technology

• Jewelry

Answer explanation

Sugar is organic.

QUESTION # 3 (MODERATE):

What is an example of a defining attribute of a mineral?

• Definite Chemical Composition

• Organic

• Man-made

• Liquid or gas

Answer explanation

There are four criteria for a mineral: fixed chemical composition, naturally-occurring, inorganic substance, and an orderly internal structure.

QUESTION # 4 (MODERATE):

If you have seen this mineral, you have probably seen it in pencils. It is another form of the carbon, other than diamond.

• Magnetite

• Graphite

• Galena

• Molybdenite

Answer explanation

Graphite is widely used in the manufacturing of pencils, and Is an allotrope of carbon.

QUESTION # 1 (DIFFICULT):

You encounter a clear mineral in a vein within a rock, which your instructor tells you is either quartz, calcite, or gypsum. You can scratch it with your pocketknife, but not your fingernail. Which is it?

• Gypsum

• Calcite

• Quartz

• Can't tell from the information

Answer explanation

Calcite (measures 3 in the Mohs Hardness Scale) is harder than a fingernail but softer than a pocketknife.