EAPS 100 EXAM QUESTIONS AND
ANSWERS
The external expression of a mineral's orderly internal arrangement of atoms is referred
to as:
A. its luster.
B. its streak.
C. its hardness
D. its crystal form.
E. its specific gravity. - Answer- D
The property of cleavage reflects:
A. the hardness of the mineral.
B. the streak of the mineral.
C. the luster of the mineral.
D. mechanical breakage along planes of weakness within the mineral.
E. the density of the mineral. - Answer- D
Which of the following substances is a mineral?
A. quartz
B. granite
C. amber
D. pearl
E. petroleum - Answer- A. quartz
Which of the below is a diagnostic characteristic of a mineral?
A. Minerals only occur as solids.
B. Minerals may occur naturally or may be synthetically made.
C. Minerals lack a repetitive geometric structure.
D. Minerals are only made of organic material from living organisms.
E. Each mineral has a defining chemical composition with no possibility for variation or
the substitution of elements. - Answer- A.
Which of the following best describes mineral habit?
A. The ability of a mineral to transmit light.
B. The organized atomic structure of a mineral.
C. The shape a mineral grows into, given sufficient space.
D. The maximum strength of a mineral.
E. The shape of a mineral caused by growth in a small space. - Answer- C
, What discourages minerals from achieving habit?
A. Enclosed spaces
B. Small impurities in the crystal structure
C. The presence of water
D. Sufficient time to form
E. Chemical composition - Answer- A
Crystal habit is the shape that a mineral develops by the repetition of __________.
A. growth in an enclosed space
B. the sudden cooling of lava at the surface
C. precipitation of a mineral from an aqueous solution
D. the basic unit cell of a mineral
E. the maximum strength of a mineral - Answer- D
Other than space, what two additional factors are significant for a crystal to attain habit?
A. Presence of dissolved gases and time
B. Atoms and high temperatures
C. Time and necessary elements
D. Age and size of crystals
E. Solubility and strength - Answer- C
Regardless of their size, most rocks are made up of __________.
A. magma
B. grains
C. synthetic minerals
D. minerals - Answer- D
Minerals must be solid, have an orderly atomic structure, have a recognized chemical
composition, be naturally occurring, and __________.
A. made by organisms
B. Found only in igneous rocks
C. be a highly valued natural resource
D. be generally inorganic in origin
E. be reproducible in a laboratory setting - Answer- D
A scientist creates diamonds using high-pressure laboratory experiments. These
diamonds are not considered minerals because which of the following requirements has
been violated?
A. Minerals must be inorganic in origin.
B. Minerals must have an orderly crystalline structure.
C. Minerals must have a known chemical composition.
D. Minerals must be solid.
E. Minerals must occur naturally. - Answer- E
Which of the following is a mineral?
ANSWERS
The external expression of a mineral's orderly internal arrangement of atoms is referred
to as:
A. its luster.
B. its streak.
C. its hardness
D. its crystal form.
E. its specific gravity. - Answer- D
The property of cleavage reflects:
A. the hardness of the mineral.
B. the streak of the mineral.
C. the luster of the mineral.
D. mechanical breakage along planes of weakness within the mineral.
E. the density of the mineral. - Answer- D
Which of the following substances is a mineral?
A. quartz
B. granite
C. amber
D. pearl
E. petroleum - Answer- A. quartz
Which of the below is a diagnostic characteristic of a mineral?
A. Minerals only occur as solids.
B. Minerals may occur naturally or may be synthetically made.
C. Minerals lack a repetitive geometric structure.
D. Minerals are only made of organic material from living organisms.
E. Each mineral has a defining chemical composition with no possibility for variation or
the substitution of elements. - Answer- A.
Which of the following best describes mineral habit?
A. The ability of a mineral to transmit light.
B. The organized atomic structure of a mineral.
C. The shape a mineral grows into, given sufficient space.
D. The maximum strength of a mineral.
E. The shape of a mineral caused by growth in a small space. - Answer- C
, What discourages minerals from achieving habit?
A. Enclosed spaces
B. Small impurities in the crystal structure
C. The presence of water
D. Sufficient time to form
E. Chemical composition - Answer- A
Crystal habit is the shape that a mineral develops by the repetition of __________.
A. growth in an enclosed space
B. the sudden cooling of lava at the surface
C. precipitation of a mineral from an aqueous solution
D. the basic unit cell of a mineral
E. the maximum strength of a mineral - Answer- D
Other than space, what two additional factors are significant for a crystal to attain habit?
A. Presence of dissolved gases and time
B. Atoms and high temperatures
C. Time and necessary elements
D. Age and size of crystals
E. Solubility and strength - Answer- C
Regardless of their size, most rocks are made up of __________.
A. magma
B. grains
C. synthetic minerals
D. minerals - Answer- D
Minerals must be solid, have an orderly atomic structure, have a recognized chemical
composition, be naturally occurring, and __________.
A. made by organisms
B. Found only in igneous rocks
C. be a highly valued natural resource
D. be generally inorganic in origin
E. be reproducible in a laboratory setting - Answer- D
A scientist creates diamonds using high-pressure laboratory experiments. These
diamonds are not considered minerals because which of the following requirements has
been violated?
A. Minerals must be inorganic in origin.
B. Minerals must have an orderly crystalline structure.
C. Minerals must have a known chemical composition.
D. Minerals must be solid.
E. Minerals must occur naturally. - Answer- E
Which of the following is a mineral?
