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Minerals/Rocks Review

Total questions: 32

Worksheet time: 8hrs 0mins

Name
Class
Date
1.
Which mineral is hard enough to scratch calcite but not hard enough to scratch amphibole?
a)
Muscovite mica
b)
Flourite
c)
Olivine
d)
Graphite
2.
A nonvesicular rock is made entirely of green 2-millimeter-diameter crystals that have a hardness of 6.5 and show fracture, but not cleavage. The rock is most likely
a)
Peridotite
b)
Dunite
c)
Scoria
d)
Granite
3.
Which texture best describes an igneous rock that formed deep underground?
a)
Glassy 
b)
Vesicular
c)
Fine grained
d)
Coarse grained
4.
Which mineral can be found in all samples of rhyolite and andesite?
a)
Pyroxene
b)
Quartz
c)
Biotite
d)
Potassium feldspar
5.
The way a mineral reflects light is called
a)
Hardness
b)
Luster
c)
Streak
d)
Cleavage
6.
What is the origin and rate of formation of this rock?
a)
Plutonic with slow cooling
b)
Plutonic with rapid cooling
c)
Volcanic with slow cooling
d)
Volcanic with rapid cooling
7.
The graph shows the elements by mass in Earth's crust.  Which element is represented by the letter X?
a)
Silicon
b)
Lead
c)
Nitrogen
d)
Hydrogen
8.
Biotite mica and muscovite mica have different chemical compositions. Compared to the magma from which biotite mica forms, the magma from which muscovite mica forms is usually
a)
More mafic and less dense
b)
More mafic and more dense
c)
More felsic and less dense
d)
More felsic and more dense
9.
Which sequence correctly matches each test, A, B, and C, with the mineral property tested?
a)
A–cleavage; B–streak; C–hardness
b)
A–cleavage; B–hardness; C–streak
c)
A–streak; B–cleavage; C–hardness
d)
A–streak; B–hardness; C–cleavage
10.
This rock is composed of cemented pebbles and sand.  This rock should be classified as 
a)
an intrusive igneous rock
b)
an extrusive igneous rock
c)
a clastic sedimentary rock
d)
a bioclastic sedimentary rock
11.
Most of the sediment that is compacted and later forms shale bedrock is
a)
clay
b)
sand
c)
silt
d)
pebbles
12.
Which igneous rock has a non-vesicular texture and a mafic composition?
a)
Pumice
b)
Scoria
c)
Granite
d)
Basalt
13.
This is a picture of a trilobite fossil in a rock.  What was the process that made this rock?
a)
Compaction and cementation
b)
Melting and solidification
c)
Heat and Pressure
d)
Crystallization and solidification
14.
Which two rocks are composed primarily of quartz, feldspar, and clay minerals?
a)
Rock salt and conglomerate
b)
Rock salt and breccia
c)
Sandstone and shale
d)
Sandstone and limestone
15.

Which property of a mineral most directly results from the internal arrangements of its atoms?

a)

volume

b)

color

c)

crystal shape

d)

streak

16.

Which rock is foliated, shows mineral alignment but not banding, and contains medium sized grains of quartz and pyroxene?

a)

pyllite

b)

schist

c)

gneiss

d)

quartzite

17.

Which list contains only silicate minerals?

a)

graphite, talc, and selenite gypsum

b)

potassium feldspar, quartz, and amphibole

c)

calcite, dolomite, and pyroxene

d)

biotite mica, flourite, and garnet

18.

Mineral A is most likely

a)

garnet

b)

galena

c)

olivine

d)

halite

19.

Which characteristic provides the best evidence that obsidian rock formed in an extrusive environment?

a)

layers of rounded fragments

b)

distorted bands of large mineral crystals

c)

noncrystalline glassy texture

d)

mineral cement between grains

20.

Which diagram shows the grain size of some common sedimentary rocks?

a)
b)
c)
d)
21.

Which graph best represents the textures of granite, pegmatite, and rhyolite?

a)
b)
c)
d)
22.

Which mineral will scratch flourite, galena, and pyroxene?

a)

graphite

b)

calcite

c)

olivine

d)

dolomite

23.

Which rock is most likely phyllite?

a)

A

b)

B

c)

C

d)

D

24.

Which sedimentary rock may have both a chemical origin and an organic origin?

a)

limestone

b)

rock gypsum

c)

rock salt

d)

shale

25.

Which relative concentration of elements is found in a mafic rock?

a)

a high concentration of silicon and a low concentration of iron

b)

a high concentration of iron and a low concentration of aluminum

c)

a high concentration of aluminum and a low concentration of iron

d)

a high concentration of aluminum and a low concentration of magnesium

26.

Which rock sample is most likely a foliated metamorphic rock?

a)
b)
c)
d)
27.

Which extrusive igneous rock is composed of approximately 40% quartz, 20% potassium feldspar, 20% plagioclase feldspar, 10% biotite mica, and 10% amphibole?

a)

rhyolite

b)

gabbro

c)

granite

d)

basalt

28.

Which type of rock is represented by the accompanying map symbol?

a)

clastic sedimentary rock formed from organic substances

b)

chemically formed sedimentary rock that consists mainly of the mineral calcite

c)

regional metamorphic rock with block like foliation

d)

contact metamorphic rock that results from the alteration of limestone by contact with an igneous intrusion

29.

Which type of rock is most likely to contain fossils?

a)

granite

b)

gneiss

c)

shale

d)

metaconglomerate

30.

Which common rock is formed from the solidification of molten material?

a)

rock gypsum

b)

slate

c)

rhyolite

d)

coal

31.

Rocks can be classified as sedimentary, igneous or metamorphic based primarily upon differences in their

a)

color

b)

density

c)

origin

d)

age

32.

Which table shows the rocks correctly classified by texture?

a)
b)
c)
d)

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