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Minerals and Rocks Review Flashcards | StudBud
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Minerals and Rocks Review
Minerals and Rocks Review
27 terms
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Earth science
Flashcards
27 cards
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Questions
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Answers
1
Obsidian's glassy texture indicates that it formed
quickly, on Eath's surface
slowly, on Earth's surface
slowly, deep below Earths's surface
quickly, deep below Earth's surface
2
Which nonfoliated rock forms in a zone of contact metamorphism?
pegmatite
quartzite
hornfels
conglomerate
3
most rocks that form from fragmental rock particles are classified as
extrusive igneous
clastic sedimentary
chemical sedimentary
intrusive igneous
4
Which Physical property of these minerals is most easily seen in the photo?
cleavage
fracture
streak
hardness
5
The minerals talc, muscovite mica, quartz and olivine are similar because they
contain silicon and oxygen
have the same hardness
break along cleavage planes
are the same color
6
This fine-grained, dark-colored, igneous rock is most likely
rhyoltie
diorite
gabbro
basalt
7
which mineral would likely become round at the fastest rate when tumbled along a stream bottom
selenite gypsum
pyroxene
plagioclase feldspar
garnet
8
Which2 kinds of adjoining bedrock would likely have a zone of contact metamorphism between them
shale and conglomerate
shale and sandstone
limestone and sandstone
limestone and granite
9
Which geologic process causes shale to turn into gneiss
weathering
sedimentary layering
metamorphism
intrusion of magma
10
one difference between a breccia rock and a conglomerate rock is that the particles in breccia
are more aligned
are more angular
are harder
are land derived
11
Which rock is only formed by regional metamorphism
slate
marble
hornfels
dunite
12
Which igneous rock has a vesicular texture and a felsic compostion?
pumice
scoria
granite
basalt
13
Which rock is composed of the mineral halite that formed when sea water evaporated?
rock salt
limestone
dolostone
rock gypsum
14
pictured: Silicate Tetrahedron. Which element combines with silicon to form the tetrahedron?
nitrogen
oxygen
potassium
hydrogen
15
The igneous rock gabbro most likely formed from molten material that cooled
slowly, deep underground
rapidly at Earth's surface
slowly at Earth's surface
rapidly, deep underground
16
which rock forms as a result of remains of decayed plants being buried, and pressure
gneiss
limestone
schist
coal
17
Which two properties are most useful in distinguishing between galena and halite?
cleavage and color
luster and color
hardness and streak
streak and cleavage
18
What is the origin and rate of formation of this rock?
plutonic with slow cooling
plutonic with rapid cooling
volcanic with slow cooling
volcanic with rapid cooling
19
Which sequence correctly matches each test, A,B, and C, with the mineral property tested?
A-Streak, B-Cleavage, C-Hardness
A-Streak, B-Hardness, C-Cleavage
A-Cleavage, B-Streak, C-Hardness
A-Cleavage, B-Hardness, C-Streak
20
Which statement best describes the properties of basalt?
fine-grained and felsic
coarse-grained and mafic
fine-grained and mafic
coarse-grained and felsic
21
photo:intergrown crystals of pegmatite rock. How do you know that it solidifed deep underground
low density
very coarse texture
felsic composition
light color
22
Slate is formed by the
folding and faulting of gneiss
foliation of schist
deposition of chlorite and mica
metamorphism of shale
23
Which mineral is commonly mined as a source of the element lead (Pb)?
gypsum
quartz
magnetite
galena
24
An
igneous
rock contains large crystals. The best conclusion to make about the rock is that it
is felsic and has a low density
contains plagioclase and pyroxene
once contained small crystal which eroded
cooled slowly as it formed
25
A granite formation was primarily formed by
cementation of clastic sediments
compaction of precipitated gypsum
solidification of felsic magma
metamorphism of layered sandstone
26
Why does the mineral mica break in smooth flat surfaces?
it contains large amounts of iron
it has a regular arrangement of atoms
it is very hard
it is very dense
27
Rocks can be classified as sedimentary, igneous, or metamorphic based upon differences in their
age
color
orgin
density