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Rocks and Mierals

Total questions: 186

Worksheet time: 2hrs 23mins

Name
Class
Date
1.

What type of rock was once melted, but has cooled and hardened?

a)

Metamorphic

b)

Sedimentary

c)

Igneous

2.

What are rocks made up of?

a)

grass

b)

pebbles

c)

minerals

3.

What type of rock is made up of pieces of sediments that have been pressed and cemented together?

a)

Sedimentary

b)

Metamorphic

c)

Igneous

4.

These rocks were once located inside the Earth, but the heat and pressure of the rocks above caused the minerals to change.

a)

Sedimentary

b)

Metamorphic

c)

Igneous

5.

In what rock would you be likely to find fossils?

a)

Sedimentary

b)

Igneous

c)

Metamorphic

6.

What is melted material inside the Earth called?

a)

Lava

b)

Magma

c)

Juice

7.

Which rock may sometimes appear to have crystals in them?

a)

Sedimentary

b)

Igneous

c)

Metamorphic

8.

What is the hardest mineral there is?

a)

Calcite

b)

Feldspar

c)

Quartz

d)

Diamond

9.

In sedimentary rocks, there are pieces of rocks called ________________ that have been pressed together.

a)

Chunks

b)

Small rocks

c)

Sediments

10.

Melted material outside the Earth is called _________________.

a)

Magma

b)

Lava

c)

Both

11.

A rock deep within the Earth experiences extreme temperature and pressure. After a long period of time it becomes which rock?

a)

Sedimentary rock

b)

Igneous Rock

c)

Metamorphic Rock

12.

Which type of rock is able to turn into a metamorphic rock?

a)

Only Sedimentary

b)

Only Igneous

c)

Both Sedimentary and Igneous

13.

What must happen to a metamorphic rock before it becomes a sedimentary rock rock?

a)

t must be broken down into sediment

b)

It must be melted into magma

c)

Its minerals must dissolve in water

d)

It must be exposed to high temperature and pressure

SHOW ANSWER

14.

The remains of living things that died long ago are often found in what type of rock?

a)

Igneous

b)

Sedimentary

c)

Metamorphic

d)

All of them

15.

The cooled and hardened magma from volcanoes form what rocks?

a)

Igneous

b)

Metamorphic

c)

Sedimentary

16.

The thickest layer of Earth is the ___ where it is so hot that the rock there is soft.

a)

Inner core

b)

Outer core

c)

Crust

d)

Mantle

17.

Hot, molten rock inside the earth is called ...

a)

Lava

b)

Magma

c)

Igneous rocks

d)

Minerals

18.

Once magma reaches the earth's surface, it is called __________.

a)

Lava

b)

Magma

c)

Igneous rocks

d)

Minerals

19.

Identify the rock

a)

Shale

b)

Limestone

c)

Conglomerate

d)

Sandstone

20.

Identify the rock

a)

Granite

b)

Marble

c)

Pumice

21.

______ is also known as The third rock from the sun

a)

Moon

b)

Earth

c)

Venus

d)

Satellite

22.

Red fort and Qutab Minar is made of _______

a)

Quartz

b)

Sandstone

c)

Limestone

d)

Marble

23.

Limestone contains

a)

Calcite

b)

Sediments

c)

Mud

d)

Clay

24.

______ Is the softest mineral in the world

a)

Mica

b)

Feldspar

c)

Talc

d)

Quartz

25.

Two types of igneous rocks are:

a)

Interior and exterior

b)

Intrusive and extrusive

c)

Inside and outside

d)

Enter and exit

26.
A __________ is a natural, nonliving substance that makes up rocks. 
a)
Sedimentary rock
b)
Igneous Rock
c)
Mineral
d)
Sediment
27.
When inside a volcano, the hot liquid that can cool to form rocks is called __________.
a)
lava
b)
magma
c)
extrusive
d)
liquid goo
28.
What type of rock is formed when magma and lava cools and hardens?
a)
minerals
b)
sedimentary
c)
igneous
d)
metamorphic
29.
Emily was looking at a rock and saw tiny crystals.  Emily should know that all rocks are made up of _____.
a)
diamonds
b)
minerals
c)
fossils
d)
dirt
30.
Which of the following is a type of rock?
a)
igneous
b)
metamorphic
c)
sedimentary
d)
All of the above
31.

This rock started as molten magma. What type of rock is this?

a)

Sedimentary

b)

Igneous

c)

Metamorphic

d)

All of the above

32.

This rock used to be the bottom of an ocean millions of years ago. What type of rock is this?

a)

Sedimentary

b)

Igneous

c)

Metamorphic

d)

Bed Rock

33.
In order for a metamorphic rock to form, _______ is needed.
a)
Pressure
b)
Heat 
c)
Heat and Pressure
d)
Weathering
34.
If I say that a penny can scratch a rock, what property am I referring to?
a)
Color
b)
Weight
c)
Hardness
d)
Luster
35.
You observe slate is a metamorphic rock that splits into flat pieces. How is slate formed?
a)
Molten magma deep inside Earth.
b)
Lava erupts and runs down the side of a volcano.
c)
A large amount of of heat and pressure.
d)
Sediments are deposited over time and become cemented.
36.

Which of the following is the softest mineral?

a)

feldspar

b)

muscovite

c)

talc

d)

diamond

37.

Which of the following is the hardest mineral?

a)

graphite

b)

fluorite

c)

diamond

d)

gypsum

38.

The hardness of a mineral is measured by a scale known as...

a)

Luster scale

b)

Hardness scale

c)

Moh's scale

d)

Transmissivity scale

39.
What are the three types of rocks?
a)
lava, metamorphic, and sedimentary
b)
igneous, sedimentary, and mineral
c)
metamorphic, lava, and igneous
d)
igneous, sedimentary, and metamorphic
40.

What type of rock forms from cementation and compaction close to or on earth's surface?

a)

Sedimentary

b)

Metamorphic

c)

Igneous

d)

Intrusive Igneous

41.

What type of rock forms from heat and pressure deep inside earth's surface?

a)

Sedimentary

b)

Metamorphic

c)

Igneous

d)

Extrusive Igneous

42.

Which of the following statements about minerals is FALSE?

a)

Minerals have a crystalline structure.

b)

Humans can create minerals to suit specific needs.

c)

Minerals are inorganic materials.

d)

Metals can be obtained from minerals

43.

By definition, a mineral has which of the following characteristic(s)?

a)

fixed chemical formula

b)

metallic or non-metallic

c)

naturally occuring

d)

all of the above

44.

Fluorite, talc, diamond, gold, and quartz are all examples of ________________.

a)

hardness

b)

luster

c)

minerals

d)

streak

45.

Name the process which is used to separate various constituent of petroleum

a)

Lubrication

b)

Refining

c)

Paraffin

d)

None of these

46.

Which of the forms of coal gives a greater amount of heat and very little smoke?

a)

Anthracite

b)

Bituminous

c)

Peat

d)

Lignite

47.

Which of the following is NOT an igneous rock?

a)
b)
c)
d)
48.

Limestone is made of a mineral called ______

a)

sulphate

b)

calcite

c)

nitrate

d)

none of these

49.

Identify the following rock.

a)

sedimentary rock

b)

metamorphic rock

c)

igneous

d)

all of these

50.

Which one among the following is a primary rock?

a)

Igneous

b)

Sedimentary

c)

Metamorphic

d)

none of these

51.

Observe the following figure.Identify the precious metal used for making this type of jewellery.

a)

gold

b)

platinum

c)

aluminium

d)

all of these

52.

Which fuel is used in atomic power plants?

a)

coal

b)

petrol

c)

uranium

d)

all of these

53.

Which stone is used for building the following monument.

a)

Marble

b)

Sandstone

c)

Igneous

d)

All of these

54.

Petroleum was formed deep inside the earth millions of years ago by remains of _______.

a)

Bacteria and Fungi

b)

Dead plants and animals

c)

None of these

d)

Black gold

55.

Which of the following natural resource provide raw materials for plastic paint, fertilizers and cosmetics?

a)

Coal

b)

Limestone

c)

Petroleum

d)

All of these

56.

The Red fort of Delhi is made of ____________

a)

limestone

b)

sandstone

c)

conglomerate

d)

all of these

57.

Igneous, Metamorphic, and Sedimentary are all types of what?

a)

coal

b)

cookies

c)

minerals

d)

rocks

58.

There are how many types of rocks?

a)

4

b)

5

c)

3

d)

2

59.
What do all rocks have in common?
a)
same size
b)
same color
c)
contain minerals
d)
same shape
60.

The process of wearing away rock is known as ____________________.

a)

metamorphic rock

b)

mineral

c)

deposition

d)

weathering

61.

There are 3 types of rocks. They are ...

a)

Volcanic - Magma - Bedrock

b)

Metamorphic - Igneous - Sedimentary

c)

Minerals - Fossil - Crust

d)

Lava - Magma - Crust

62.

The hot liquid inside the Earth is called ...

a)

CRUST

b)

BEDROCK

c)

MAGMA

d)

VOLCANO

63.

What type of rock is made from magma?

a)

SEDIMENTARY

b)

METAMORPHIC

c)

IGNEOUS

64.

Liquid that flows when a volcano erupts

a)

WATER

b)

MUD

c)

LAVA

d)

MAGMA

65.

I am the main type of rock that has been changed by extreme heat or pressure. What type of rock am I?

a)

metamorphic

b)

sedimentary

c)

igneous

66.
True or False: Once a rock is sedimentary, it cannot become an igneous rock.
a)
True
b)
False
67.
1. What will happen if an igneous rock is put under an extreme amount of heat and pressure?
a)
it will melt into lava
b)
it will weather and erode
c)
it will become a metamorphic rock
d)
it will become a sedimentary 
68.
This marble was once limestone, but heat and pressure changed it, recrystallizing the calcite and distorting the layers. 
a)
Igneous
b)
Sedimentary
c)
Metamorphic
69.
Obsidian is formed from molten lava that cools so quickly that it forms a natural glass instead of crystals. 
a)
Igneous
b)
Sedimentary
c)
Metamorphic
70.
Pumice is formed when magma reaches the surface, and reduced pressure lets gas bubbles escape. When it cools, it has so many trapped air bubbles that it will actually float in water.
a)
Igneous
b)
Sedimentary
c)
Metamorphic
71.
Kim has a rock that contains the imprints of shells on it. What type of rock is it most likely?
a)
igneous
b)
sedimentary
c)
metamorphic
d)
volcanic
72.
You observe slate is a metamorphic rock that splits into flat pieces. How is slate formed?
a)
Molten magma deep inside Earth.
b)
Lava erupts and runs down the side of a volcano.
c)
A large amount of of heat and pressure.
d)
Sediments are deposited over time and become cemented.
73.
You look at a poster describing different rocks. Which is mostly likely a sedimentary rock?
a)
obsidian- glassy and dark
b)
limestone- made up of many layers
c)
pumice- full of air pockets
d)
granite-speckled many colors
74.
A __________ is a natural, nonliving substance that makes up rocks. 
a)
Sedimentary rock
b)
Igneous Rock
c)
Mineral
d)
Sediment
75.
What type of rock is formed when magma and lava cools and hardens?
a)
minerals
b)
sedimentary
c)
igneous
d)
metamorphic
76.
Emily was looking at a rock and saw tiny crystals.  Emily should know that all rocks are made up of _____.
a)
diamonds
b)
minerals
c)
fossils
d)
dirt
77.
Which of the following is a type of rock?
a)
igneous
b)
metamorphic
c)
sedimentary
d)
All of the above
78.
A solid material that is made up of one or more minerals.
a)
mineral
b)
rock
c)
fossil
d)
soil
79.
In order for a metamorphic rock to form, _______ is needed.
a)
Pressure
b)
Heat 
c)
Heat and Pressure
d)
Weathering
80.
This rock used to be the bottom of an ocean millions of years ago. What type of rock is this?
a)
Sedimentary
b)
Igneous
c)
Metamorphic
81.
What is the geological process by which rocks are formed, destroyed, or altered?
a)
continental drift
b)
plate tectonics
c)
water cycle
d)
rock cycle
82.
Intrusive rock derives from________.
a)
Above ground 
b)
Below ground 
c)
Under water 
d)
Neither 
83.

A mineral from which a metal can be profitably extracted is

a)

Ore

b)

Baxite

c)

Granite

d)

Magma

84.

Limestone and marble are rich in

a)

Mica

b)

Sand

c)

Calcium

d)

Quarts

85.

Minerals make up

a)

Substances

b)

Rocks

c)

Things

d)

Elements

86.

(a)   is formed when small particles of sand get compressed and cemented together

87.

Limestone changes into

a)

granite

b)

Sandstone

c)

Marble

d)

Shale

88.

(a)   rocks are formed due to cooling of lava

89.

_________is a soft coal which burns with a lot of smoke

a)

Anthracite

b)

peat

c)

Bituminous

90.

An uneven textured rock

(a)  

91.

Scientist who studies about rocks and the crust of earth are called

(a)  

92.

Pudding stone is the name given to which rock

a)

    Basalt

b)

  Pumice

c)

  Conglomerate

d)

Shale

93.
Rock that have changed by heat and pressure
a)
igneous rock
b)
sedimentary rock
c)
metamorphic rock
94.
Rock that was once melted and then cooled and hardened
a)
igneous rock
b)
sedimentary rock
c)
metamorphic rock
95.
A rock is a naturally formed solid made of one or more ________.
a)
elements
b)
chemicals
c)
minerals
96.
What do you call the movement of weathered rocks?
a)
erosion
b)
streak
c)
pressure
97.

What type of rock is formed from volcanos?

a)

metamorphic

b)

igneous

c)

sedimentary

d)

sandstone

98.

Fossils are a form of:

a)

mineral

b)

igneous rock

c)

sedimentary rock

99.
A __________ is a natural, nonliving substance that makes up rocks. 
a)
Sedimentary rock
b)
Igneous Rock
c)
Mineral
d)
Sediment
100.
What type of rock is formed when magma and lava cools and hardens?
a)
minerals
b)
sedimentary
c)
igneous
d)
metamorphic
101.
In order for a metamorphic rock to form, _______ is needed.
a)
Pressure
b)
Heat 
c)
Heat and Pressure
d)
Weathering
102.

Which of the following describes a metallic mineral?

a)

silver

b)

a mineral that conducts electricity, has a shiny surface, and is opaque

c)

copper

d)

all of the above

103.
By definition, a mineral has which of the following characteristic(s)?
a)
definite chemical composition
b)
crystal structure
c)
naturally occuring
d)
all of the above
104.
Rock formed from materials that have settles into layers from weathering
a)
igneous rock
b)
sedimentary rock
c)
metamorphic rock
105.

Igneous comes from the Latin word-

a)

Ignis

b)

Ignous

c)

Iginis

106.

Petrolium is known as _____ and Black Diamond is known as ______.

a)

Black Gold; Coal

b)

Black Diamond; Black Gold

c)

Coal; Black Gold

d)

Red Gold; Petrolium

107.

Gneiss is made up of?

(a)  

108.

Which rock is this?

(a)  

109.

Which of them is NOT a use of coal?

a)

Cooking and Heating

b)

Steel Industry

c)

Cosmetics

d)

Cement industry

110.

Petroleum is extracted from many places in India. Which of them is not a place from where Petroleum is extracted?

a)

Digboi

b)

Mangala

c)

Nashik

d)

Ankleshwar

111.

How can we Conserve the Natural Resources?

a)

By Driving 50 Km each day

b)

Waste Energy

c)

Save energy

d)

Switch off bulbs when not in use

112.

________ and _______ are made up of sandstone.

a)

Red fort; Qutub Minar

b)

India Gate; Red Fort

113.

And This is-

(a)  

114.

Name of copper ore

(a)  

115.

Granite's Metamorphic form

(a)  

116.

This is used to make Blackboards

(a)  

117.

Stone with holes and pockets

(a)  

118.

Who am I?

My metamorphic form is Marble

(a)  

119.

That's me!

(a)  

120.

what is mineral ?

a)

a natural substance, non living thing

b)

A man made substance

c)

living thing

d)

none of the above

121.

what are the type of rocks ?

a)

igneous, sedimentary, mineral

b)

igneous, sedimentary, metamorphic

c)

sedimentary, metamorphic, mineral

d)

igneous, metamorphic, mineral

122.

which type of rock is this ?

a)

igneous

b)

metamorphic

c)

sedimentary

d)

marble

123.

how are metamorphic rocks formed ?

a)

igneous and sedimentary rocks are compressed

b)

igneous and sedimentary rocks are heated to a high temperature

c)

igneous and sedimentary rocks are pressed down

d)

igneous and sedimentary rocks are pressed down then compressed and heated to a high temperature

124.

which is the most common rock found ?

a)

Igneous rock

b)

sedimentary rock

c)

Metamorphic rock

125.

which is the hardest mineral ?

a)

ruby

b)

opal

c)

diamond

d)

emerald

126.

what are the type of igneous rock

a)

pumice, obsidian, basalt, granite

b)

pumice,granite,limestone

c)

obsidian, basalt, marble

127.

what does sandstone become ?

a)

quartzite

b)

marble

c)

sand

128.

which rock is marble

a)

igneous

b)

sedimentary

c)

metamorphic

d)

other

129.

what do we use pumice used for ?

a)

removing dead skin

b)

jewellery

c)

construction

130.

which type of crystal is pyrite made from ?

a)

Perfect cube

b)

Not perfect cube

c)

rectangle

d)

circle

131.

Which one among the following rocks is a metamorphic rock

a)

Shale

b)

Limestone

c)

Slate

d)

Sandstone

132.

Magma that cools slowly beneath the earth's surface produces

a)

marble

b)

intrusive igneous rocks

c)

fine-grained metamorphic rocks

d)

extrusive igneous rocks

133.

Igneous, sedimentary, and metamorphic rocks are usually composed of

a)

intergrown crystals

b)

Minerals

c)

Fossils

d)

Sedements

134.

Which process is necessary for the formation of igneous rocks?

a)

erosion

b)

deposition

c)

metamorphism

d)

solidification

135.

Which property helps you decide whether a mineral is nonmetallic or metallic?

a)

Luster

b)

Hardness

c)

Cleavage

d)

Color

136.

A naturally occurring, inorganic solid that has a definite crystalline structure and chemical composition

a)

compound

b)

Minerals

c)

Rocks

d)

Crystals

137.

Which is NOT a property of a mineral?

a)

Tempreture

b)

Hardness

c)

Color

d)

Streak

138.

Rocks are made up of which material

a)

Minerals

b)

Fossils

c)

Sands

d)

Soils

139.

what is the hardest mineral in the earth

a)

Daimond

b)

Talc

c)

Flourite

d)

Topaz

140.

Which rock is found in Volcanoes mostly

a)

Igneous rocks

b)

Metamorphic rocks

c)

Sedimentary rocks

d)

Mineral rocks

141.

What are the basic types of rocks found on earth?

a)

Igneous, sedimentary, metamorphic

b)

Volcanic, plutonic, extrusive

c)

Gneiss, basalt, obsidian

d)

Igneous, sedimentary, Gneiss

142.

What type of rock forms when magma hardens beneath the Earth's surface?

a)

Extrusive igneous

b)

Intrusive igneous

c)

Intrusive metamorphic

d)

Metamorphic Rocks

143.

What are rocks made up of?

a)

Soil

b)

Pebbles

c)

Minerals

d)

Dust

144.

What property describes minerals as shiny, pearly, glassy, or dull?

a)

Lustre

b)

Colour

c)

Hardness

d)

Looks

145.

Identify the rock and its type.

a)

Sandstone, Metamorphic

b)

Sandstone, Sedimentary

c)

Conglomerate, Sedimentary

d)

Conglomerate, Metamorphic

146.

Slate is formed from ___________.

a)

shale

b)

intrusive metamorphic material

c)

extrusive igneous material

d)

gneiss

147.

Choose the correct statement about Quartzite.

a)

It is a soft rock

b)

It can cause a scratch on steel

c)

It is used to make kitchen utensils

d)

It is formed from limestone

148.

Q8. State true or false. Coal is a sedimentary rock.

a)

True

b)

False

149.

Name the type of coal that gives off very little heat and is not often used.

a)

Peat

b)

Lignite

c)

Bituminous

d)

Anthracite

150.

Another name for petroleum is _______________________.

a)

Oil

b)

Transport oil

c)

Crude gas

d)

Black gold

151.

Vidyut was working on the classroom blackboard. While he was solving a mathematics problem on the board, he wondered about the origin of chalk. Help him to understand this.

a)

Chalk is an igneous rock that comes from the shells of tiny sea creatures

b)

Chalk is a sedimentary rock that comes from the shells of tiny sea creatures

c)

Chalk is a metamorphic rock that comes from mountainous sediments

d)

Chalk is a synthetic rock which is processed in factories

152.

Which of the following is the ore of aluminium?

a)

Calamine

b)

Pyrite

c)

Bauxite

d)

Galena

153.

I am the most common mineral found on Earth. I can be brown, pink, yellow or red in colour. Who am I?

a)

Sandstone

b)

Quartz

c)

Galena

d)

Bauxite

154.

This rock is used as a decorative piece and a body scrubber as well. Choose the correct answer.

a)

Granite

b)

Basalt

c)

Marble

d)

Pumice

155.

Which is the incorrect pair?

a)

Iron - Haematite

b)

Aluminium - Bauxite

c)

Lead - Calamine

d)

Copper - Pyrite

156.

Gneiss has _____________ that makes it shine.

a)

wood

b)

pearl

c)

diamond

d)

mica

157.

Choose the correct pair of hardest and softest minerals.

a)

Bauxite-Calamine

b)

Diamond-Talc

c)

Bauxite-Chalk

d)

Diamond-Galena

158.

Tia goes to buy a house. She explores the house in this order - floor, kitchen counters, decorative shelves in living room, study room. Choose the correct option based on which rocks would be most suitable for the objects she was exploring:

a)

Slate-Granite-Marble-Shale

b)

Granite-Marble-Limestone-Conglomerate

c)

Marble-Granite-Conglomerate-Slate

d)

Shale-Granite-Slate-Conglomerate

159.

State true or false. We obtain LPG and CNG from petroleum.

a)

True

b)

False

160.

When magma reaches the surface of the earth, it is called _________.

a)

lava

b)

igneous rock

c)

magma

d)

extrusive rock

161.

Which of the following is not an example of igneous rock?

a)

Obsidian

b)

Granite

c)

Pumice

d)

Shale

162.

The Taj Mahal is primarily made of (a)  

163.

Name the material used to make roof tiles and blackboards-

(a)  

164.

Name the softest naturally occurring mineral-

(a)  

165.

Which of the following is an example of the hardest mineral?

a)

Coal

b)

Lignite

c)

Diamond

166.

Which of the following is the best variety of coal?

a)

Peat

b)

Anthracite

c)

LIignite

167.

--------------------is also called Black Gold

(a)  

168.

---------------is formed from dead plants buried inside the Earth fir millions of years.

(a)  

169.

--------------is formed from the dead remains of marine organisms that got buried under the sea millions of years ago

(a)  

170.

------------ rocks are formed due to the cooling and solidifying of molten rocks,

(a)  

171.

------------rocks are the rocks that have changed their form.

a)

Igneous

b)

Metamorphic

c)

Sedimentary

172.
How do sedimentary rock form?
a)
by pressure of layers of sediment
b)
by heat from volcanos
c)
by heat and pressure deep underground
173.
The property of luster means..
a)
the hardness of a mineral
b)
the color of the mineral
c)
the streak the mineral leaves
d)
how the mineral reflects light
174.
What type of rock is formed from melted materials that cook and then harden?
a)
Sedimentary rocks
b)
Metamorphic rocks
c)
Igneous Rocks
175.
Hardness, color, and luster are examples of a mineral's ___________.
a)
price
b)
weight
c)
property
d)
name
176.
What mineral can be identified by bubbles when tested in vinegar?
a)
feldspar
b)
calcite
c)
talc
d)
quartz
177.
What type of rock is pictured?
a)
Igneous
b)
Metamorphic
c)
Sedimentary
178.
What are the three types of rocks?
a)
lava, metamorphic, and sedimentary
b)
igneous, sedimentary, and mineral
c)
metamorphic, lava, and igneous
d)
igneous, sedimentary, and metamorphic
179.
A geologist is a scientist who studies_______.
a)
plants and animals
b)
fossils
c)
rocks and minerals
d)
ocean animals
180.
What mineral is the softest?
a)
quartz (7)
b)
mica (2)
c)
feldspar (6)
d)
talc (1)
181.
What was the purpose of the scratch test?
a)
to find if the rock contained calcite
b)
to find the hardness of the mineral 
c)
to find the color
182.

What two properties are most helpful for identifying minerals?

a)

luster and streak

b)

color and size

c)

shape and hardness

d)

color and hardness

183.
A rock is...
a)
made of 2 or more minerals
b)
something found in nature
c)
something that can be broken with a hammer or chisel
d)
all answers
184.
A mineral is...
a)
solid material made from many different kinds of rocks
b)
a solid matter formed in nature and found in earth materials (rocks)
c)
made from layers of sediment
d)
formed from heat of magma
185.
Using the Mohs Hardness Scale, what  mineral is the hardest?
a)
Quartz
b)
Diamond
c)
Feldspar
d)
Talc
186.
Using the Mohs Hardness Scale (click the text to see the Scale), name two minerals harder than Fluorite.
a)
Talc and Calcite
b)
Gypsum and Quartz
c)
Quartz and Feldspar
d)
Diamond and Talc