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Online Quiz
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1
The silicate tetrahedron is composed of
A)4 oxygen and 2 silicon atoms
B)4 silicon and 1 oxygen atoms
C)4 silicon and 2 oxygen atoms
D)4 oxygen and 1 silicon atoms
2
The vast majority of rock-forming minerals are
A)oxides
B)carbonates
C)sulfides
D)silicates
3
Which mineral is not a silicate?
A)calcite
B)quartz
C)olivine
D)feldspar
4
Which mineral subgroup is the most abundant in Earth's crust?
A)micas
B)garnet
C)ferromagnesian
D)feldspars
5
Which is not part of the definition of a mineral?
A)naturally occurring
B)aggregate of elements
C)definite chemical composition
D)orderly internal arrangement
6
Pure ice is a mineral while pure liquid water is not. Why?
A)liquid water does not have an orderly internal arrangement of atoms
B)liquid water does not occur naturally
C)liquid water does not have a definite chemical composition
D)all of the above
7
Ionic bonding:
A)one element gives electron(s) to another element
B)elements share electrons
C)one element gives neutrons to another element
D)elements share protons
8
Atomic number is the
A)number of protons in an atom
B)sum of the number of protons plus the number of neutrons in an atom
C)number of neutrons in an isotope
D)sum of the number of protons plus the number of electrons in an atom
9
The process of lithification produces
A)igneous rocks
B)soil
C)sedimentary rocks
D)metamorphic rocks
10
Rock salt and limestone are examples of
A)metamorphic rocks
B)chemical sedimentary rocks
C)fragmental sedimentary rocks
D)igneous rocks
11
Which rock has a clastic texture?
A)gneiss
B)basalt
C)granite
D)conglomerate
12
Slate:
A)Can become schist upon further metamorphosis.
B)is the sedimentary rock from which shale forms.
C)is a low grade metamorphic rock that forms from shale.
D)both a and c are correct.
13
Contact metamorphic rocks
A)occur throughout hundreds of square miles
B)are formed next to igneous intrusions
C)are usually foliated
D)are formed along faults
14
Examples of foliated metamorphic rocks are
A)marble and quartzite
B)shale and andesite
C)limestone and marble
D)slate and schist
15
The three rock groups, igneous, metamorphic, and sedimentary, are distinguished from each other on the basis of
A)mineral content
B)principle of superposition
C)mode of origin
D)all of the above
16
Atoms are linked by covalent bonds when they share
A)protons.
B)nuclei.
C)electrons.
D)isotopes.
17
The shape of mineral crystals depends most on
A)chemical composition.
B)internal atomic arrangement.
C)bonding and hardness.
D)chemical purity.
18
Positively charged cations form when atoms
A)lose electrons.
B)gain electrons.
C)lose protons.
D)gain protons.
19
The two most fundamental characteristics that most distinguish minerals are
A)chemical composition and crystal structure.
B)color and hardness.
C)weight and transparency.
D)bonding and atomic number.
20
Ions are atoms that have
A)a nucleus.
B)protons.
C)radioactive decay.
D)an electrical charge.
21
The native elements are minerals with only one
A)crystal.
B)color.
C)element.
D)location.
22
Rocks are
A)found inside minerals.
B)chemically different from minerals.
C)made of minerals.
D)only made of one mineral.
23
When magma cools underground it forms igneous rocks with
A)ash particles.
B)microscopic crystals.
C)visible crystals.
D)no crystals.
24
Many common ore deposits have sulfide minerals that contain
A)sulfur and oxygen.
B)sulfur and metallic elements.
C)sulfur and carbon-rich elements.
D)sulfur and silicon elements.
25
The rock cycle:
A)shows that all rocks on earth begin as igneous rocks, are then transformed by weathering into sedimentary rock, and are finally transformed into metamorphic rock before remelting.
B)shows that it is impossible for an igneous rock to become metamorphosed before becoming a sedimentary rock.
C)shows that all sedimentary rock eventually is metamorphosed.
D)shows that it is possible for an igneous rock to remain igneous up to the point of remelting.
26
Mineral cleavage is most directly related to
A)chemical composition.
B)atomic arrangement.
C)mineral hardness.
D)density.





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