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Rocks and Minerals
By Travis Moore
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Last updated about 2 years ago
24 questions
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Question 1
1.
Which is not a defining characteristic of minerals?
solid
naturally occuring
specific chemical composition
organic
Question 2
2.
Which is a mineral?
diorite
bituminous coal
ice
magma
Question 3
3.
Which characteristic describes the shininess of a mineral?
luster
cleavage
hardness
streak
Question 4
4.
Which mineral has a nonmetalic luster?
galena
calcite
chalcopyrite
pyrite
Question 5
5.
Which is true regarding the Mohs Scale?
The Mohs Scale measures fracture
A mineral with a Mohs value of 5 is harder than a mineral with a Mohs value of 6
Talc has a Mohs value of 1
All of the above are true
Question 6
6.
What is the consequence of muscovite's cleavage?
It flakes off in thin sheets
It breaks into perfect cubes
It breaks into rhombs (slanted cubes)
muscovite exhibits fracture, not cleavage
Question 7
7.
Why did we have to heat our solution in order to grow crystals?
The heat created a seed crystal
The heat provided the energy to trigger crystal growth
The heat allowed us to dissolve more CuSO
4
into solution than we could at room temperature
The heat increased the density of water which promoted crystal growth
Question 8
8.
Which mineral has a positive acid test?
halite
calcite
selenite
quartz
Question 9
9.
Which would you use to perform a streak test?
white tile
glass
iron nail
hydrochloric acid
Question 10
10.
Which is not an iron ore?
galena
hematite
magnetite
pyrite
Question 11
11.
Igneous rocks result from:
cooled magma
cooled lava
both of the above
none of the above
Question 12
12.
Intrusive igneous rocks tend to have ______________ crystals than extrusive igneous rocks.
bigger
smaller
fewer
softer
Question 13
13.
Which type of magma produces the darkest rocks?
rhyolitic
basaltic
intermediate
magma type doesn't affect rock color
Question 14
14.
Which is an extrusive igenous rock?
diorite
basalt
gabbro
granite
Question 15
15.
Which rock has a vesicular texture?
pumice
rhyolite porphyry
granite
obsidian
Question 16
16.
The amount of which mineral determines the "redness" of granite.
quartz
plagioclase feldspar
microcline feldspar
biotite
Question 17
17.
Which geologic feature is largely the result of chemical weathering?
canyons
caves
mountains
volcanoes
Question 18
18.
Which is not a major mechanism of erosion?
wind
water
gravity
lithification
Question 19
19.
Which is a biochemical sedimentary rock?
conglomerate
shale
coquina
breccia
Question 20
20.
What type of rock makes up the majority of the walls of the Grand Canyon?
igneous
sedimentary
metamorphic
Question 21
21.
Which event in the formation of the grand canyon was most recent?
uplift of the plateau
incision of the canyon
deposition of sediments from an inland sea
lava dams from volcanoes
Question 22
22.
Metamorphic rocks form from:
existing rocks being exposed to extreme heat and pressure
magma cooling
lithification of sediments
all of the above
Question 23
23.
Foliation refers to which?
layers of sedimentary rock
different sized grains in igneous rocks
bands of minerals in metamorphic rocks
the chemical composition of a mineral
Question 24
24.
Which has a parent rock that is igneous?
anthracite coal
gneiss
slate
quartzite