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Earth Science Regents Review #2 - Rocks & Minerals Flashcards | StudBud
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Earth Science Regents Review #2 - Rocks & Minerals
Earth Science Regents Review #2 - Rocks & Minerals
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Use the Earth Science Reference Tables and your knowledge of Earth Science to solve the questions.
Flashcards
26 cards
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Questions
26
Answers
1
This fine-grained, dark-colored, igneous rock is most likely
gabbro
rhyolite
diorite
basalt
2
One difference between a breccia rock and a conglomerate is that the particles in a breccia are
harder
more angular
more aligned
land derived
3
Which physical characteristic best describes the rock phyllite?
clastic texture with angular fragments
foliated texture with microscopic mica crystals
bioclastic texture with cemented shell fragments
glassy texture with gas pockets
4
The mineral graphite is often used as
a cementing materials
an abrasive
a lubricant
a source of iron
5
Wavy bands of light and dark minerals visible in gneiss bedrock probably formed from the
cooling and crystallization of magma
heat and pressure during metamorphism
cementing together of individual mineral grains
evaporation of an ancient ocean
6
Which type of rock is most likely to contain fossils?
shale
metaconglomerate
granite
gneiss
7
Which mineral property is illustrated by the peeling of muscovite mica into thin, flat sheets?
streak
cleavage
luster
hardness
8
Which rock sample is most likely a foliated metamorphic rock?
A
C
B
D
9
The rock was probably formed by
heat and pressure that changed a preexisting rock
volcanic lava that cooled on Earth's surface
a meteor impact on Earth's surface
sediments that were deposited on the ocean floor
10
Which rock is composed of the mineral halite that formed when seawater evaporated?
rock salt
limestone
dolostone
rock gypsum
11
Which igneous rock has a vesicular texture and a felsic composition?
pumice
basalt
scoria
granite
12
Which characteristic is the best evidence that obsidian rock formed in an extrusive environment
distorted bands of large mineral crystals
layers of rounded fragments
mineral cement between grains
noncrystalline glassy texture
13
Which mineral scratches dolomite and is scratched by olivine?
galena
quartz
potassium feldspar
muscovite mica
14
Which process is necessary for the formation of igneous rocks?
metemorphism
erosion
solidification
deposition
15
Which characteristic do samples of the mineral pyroxene normally exhibit?
bubbling in hydrochloric acid
cleaves at 56° and 124°
yellow to amber color
hardness of 5 to 6
16
Which table shows the rocks correctly classified by texture?
C
B
A
D
17
Which observation about the rock best supports this classification?
The rock contains fragments of other rocks
The rock is composed of several minerals
The rock shows distorted and stretched pebbles
The rock has a vesicular texture
18
Which mineral leaves a green-black powder when rubbed against an unglazed porcelain plate?
galena
hematite
graphite
pyrite
19
Which sequence correctly matches each test, A, B, and C, with the mineral property tested?
A-cleavage B-hardness C-streak
A-streak B-hardness C-cleavage
A-cleavage B-streak C-hardness
A-streak B-cleavage C-cleavage
20
Which process could lead directly to the formation of pumice rock?
precipitation of minerals from evaporating seawater
explosive eruption of lava from a volcano
deposition of quartz sand
metamorphism of unmelted rock material
21
What is the best way to determine if a mineral sample is calcite or quartz?
measure the mass of the mineral
place the mineral near a magnet
observe the color of the mineral
place a drop of acid on the mineral
22
Which rock is made up of angular fragments of rock held together by a natural cement?
quartzite
breccia
granite
scoria
23
Based on the composition and foliated texture, this rock can best be identified as
schist
slate
anthracite coal
marble
24
Which geologic process is occuring to cause this conversion?
weathering
metamorphism
sedimentary layering
intrusion of magma
25
Which mineral has a metallic luster, a black streak, and is an ore of iron?
graphite
galena
pyroxene
magnetite
26
How do the metamorphic rocks schist and quartzite differ?
Quartzite form from regional metamorphism and schist doesn't
Quartzite contains the mineral quartz and schist does not.
Schist is foliated and quartzite is not.
Schist is organically formed and quartzite is not.
