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Minerals & Rocks Chapter Review
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What is another name for halite?
 
Table salt
 
Mica
 
Limestone
 
Granite
Which of the following minerals is composed of sheeted tetrahedra?
 
Micas
 
Feldspar
 
Pyroxene
 
Quartz
Consider a sample with a mass of 250 grams. Calculate the density of the sample if it displaces 100 cc of water.
 
2.5 g/cc
 
25 g/cc
 
25000 g/cc
 
7.5 g/cc
If you found a rock that appeared to have been formed directly from volcanic activity, how would you classify it?
 
Igneous rock.
 
Sedimentary rock.
 
Volcanic rock.
 
Metamorphic rock.
Gold has a shiny appearance and is said to have a _____ luster.
 
metallic
 
pearly
 
glassy
 
silky
Which type of tenacity refers to the ability of a mineral to resume its original form when a stress is removed?
 
Elastic
 
Fibrous
 
Malleable
 
Sectile
Iron pyrite is sometimes referred to as fool's gold. It has a cubic shape. What type of crystal habit is this?
 
Cubic
 
Prismatic
 
Dodecahedral
 
Octahedral
Hematite has the appearance of a cluster of grapes. Which type of habit does this represent?
 
Botryoidal
 
Geometric
 
Prismatic
 
Polygonal
When a parent rock is changed due to high pressure or temperature, which type of rock is formed?
 
Metamorphic
 
Sedimentary
 
Extrusive igneous
 
Intrusive igneous
Which of the following is a key difference between detrital and chemical sedimentary rocks?
 
Chemical sedimentary rock is formed from dissolved material.
 
Detrital sedimentary rock is formed beneath the earth crust
 
Detrital sedimentary rock is formed at the surface of Earth
 
Chemical sedimentary rock is formed from solid pieces of roc
Which of the following substances is inorganic?
 
Rock
 
Bone
 
Leaves
 
Wood
Which of the following is NOT a rock?
 
Diamond
 
Granite
 
Sandstone
 
Limestone
Which of the following is NOT a non-silicate mineral?
 
Mica
 
Sodium chloride
 
Calcium sulfate
 
Halite
What were limestone deposits in Kansas made from?
 
Sediments
 
Compressed fossils
 
Evaporated sea water
 
Cooled molten rock
Silicate X has a three-dimensional arrangement of tetrahedra. It is part of a group that can be held together by various cations and is named for the specific cation present. Silicate X is an example of a/an _____.
 
Feldspar
 
Olivine
 
Amphibole
 
Quartz
How is the olivine group of silicates different from quartz?
 
the olivine group of silicates forms deeper in the earth.
 
The olivine group of silicate is more abundant
 
Quartz contains cations;
 
Quartz forms under high pressure and high temperature;
Which of the following minerals has the greatest density?
 
Platinum
 
Graphite
 
Gold
 
Galena
Consider a specimen that has a mass of 20 grams. Calculate its specific gravity if the same volume of water has a mass of 5 grams.
 
4
 
100
 
100 grams/cc
 
4 grams/cc
If you wanted to collect sedimentary rocks, what sort of characteristics would you look for in a rock's composition?
 
Rock made from eroded material broken off
 
Rock that includes sparkly crystals
 
Rock that has been transformed into new
 
Rock that formed from magma or lava
Rocks that are transformed into different rocks under intense heat and pressure are known as _____.
 
metamorphic rocks
 
igneous rocks
 
volcanic rocks
 
sedimentary rocks
The appearance of a mineral in its powdered form that can also be used to distinguish it from another mineral is referred to as the mineral's _____.
 
streak
 
gravity
 
color
 
luster
Minerals that are impenetrable to light are referred to as _____.
 
opaque
 
graphite
 
transparent
 
translucent
Why are some drill bits tipped with diamonds?
 
Diamond is the hardest natural mineral.
 
Diamonds are affordable compared to other materials
 
Diamond is the most malleable substance
 
Diamonds exhibit cleavage and as a result can drill hard.
What type of fracture does quartz exhibit?
 
Conchoidal
 
Earthy
 
Perfect
 
Fibrous
The unique arrangement of atoms present in diamonds represents an important distinction from _____
 
graphite
 
rocks
 
olivines
 
non-silicates
Which of the following has its own chemical formula?
 
A mineral.
 
None of these answers are correct.
 
Both rocks and minerals.
 
A rock.
Which of the following statements is true regarding sedimentary rocks?
 
All of these statements are true.
 
Sandstone is a common example of sedimentary rock.
 
Sedimentary rocks are considered secondary rocks.
 
Weathered particles can over time form a sedimentary rock.
Conchoidal, earthy, and irregular refer to fractures found in _____.
 
minerals
 
cleavages
 
non-silicates
 
silicates
Halides, carbonates, and sulfates are all examples of _____.
 
non-silicates
 
silicates
 
sedimentary rocks
 
olivines
Which of the following would be MOST likely classified as an olivine?
 
A yellow gemstone with nonmetallic luster.
 
A colorless mineral with a white streak.
 
A dense metamorphic rock, which is red in color
 
A purple diamond with metallic luster.