UND Geology 101|79 Exam 1 Review Questions With 100% Correct Answers
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Course
UND Geology 101
Institution
UND Geology 101
What is the expected luster of pyrite? - ️️metallic
What is the expected luster of quartz? - ️️vitreous/glassy
What is the famous national park in this picture? - ️️Yosemite National Park
What is the Mohs scale (on what is it based), and what value on that scale is represented by qua...
What is the expected luster of pyrite? - ✔ ✔ metallic
What is the expected luster of quartz? - ✔ ✔
vitreous/glassy
What is the famous national park in this picture? - ✔ ✔
Yosemite National Park
What is the Mohs scale (on what is it based), and what value
on that scale is represented by quartz? - ✔ ✔ A series
of 10 minerals used as a standard in determining hardness.
1 talc
2 gypsum
(2.5 - fingernail)
3 calcite
penny
4 fluorite
nail
5 apatite
,(5.5 - glass)
(5-6.5 knife blade)
6 orthoclase
(6.5 steel file)
7 quartz
8 topaz
9 corundum
10 diamond
What is the most common igneous rock on the seafloor? -
✔ ✔ vesicular basaltic rocks
What is the texture of this rock? - ✔ ✔ Porphorytic
rhyolite
What is the texture of this rock? Is this rock intrusive or
extrusive? Is it plutonic or volcanic? - ✔ ✔ Texture =
aphanatic (can't see minerals with unaided eye)
Extrusive
Volcanic
, What mineral comprises the common rock "limestone"? -
✔ ✔ Calcite (calcium carbonate)
What must you determine in order to name an igneous
rock? - ✔ ✔ You must determine the type of flow the
igneous rock was formed from.
What two minerals are found in pencil lead? Is there any
lead in pencil lead? - ✔ ✔ Graphite and kalonite
no lead
Describe an atom and tell how an atom becomes an ion. -
✔ ✔ Ions are atoms that have either gained or lost an
electron to result in a positive or negative net charge
Describe and distinguish the three types of volcanoes by
size, shape, and components. - ✔ ✔ cinder cone -
Describe the silicate molecule - ✔ ✔ Tetrahedron with
4 oxygen atoms surrounding a silicon atom
Does a snowflake qualify as a mineral? Why or why not? -
✔ ✔ Yes, it is (1) naturally occurring, (2) inorganic, (3)
crystalline, and (4) fixed composition
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