Page 1
Kiri was visiting Sukant in his
native place near Dhanbad. Kiri
was amazed to see that large
areas were black. “Sukant, why
is this place so black and dusty?”
she asked. “This is because of the
coal mines nearby. Do you see
the trucks? They are carrying the
mineral coal”, replied Sukant.
“What are minerals?,” asked
Kiri. Sukant replied, “Have
you ever seen a baker baking
biscuits? The flour, milk, sugar
and sometimes eggs are mixed
together. While eating the baked biscuits can you see
these ingredients separately? Just as in the biscuits,
there are a number of things that you cannot see,
rocks on this earth have several materials called
minerals mixed in them. These minerals are scattered
throughout the earth’s rocky crust”.
A naturally occurring substance that has a definite
chemical composition is a mineral. Minerals are not
evenly distributed over space. They are concentrated in
a particular area or rock formations. Some minerals are
found in areas which are not easily accessible such as
the Arctic ocean bed and Antarctica.
Minerals are formed in different types of geological
environments, under varying conditions. They are
created by natural processes without any human
interference. They can be identified on the basis of their
physical properties such as colour, density, hardness
and chemical property such as solubility.
Do you know?
The salt in your
food and graphite in
your pencil are also
minerals.
Mineral and
Power Resources
Fig. 3.1: Loading of a truck in
a coal mine
2022-23
Page 2
Kiri was visiting Sukant in his
native place near Dhanbad. Kiri
was amazed to see that large
areas were black. “Sukant, why
is this place so black and dusty?”
she asked. “This is because of the
coal mines nearby. Do you see
the trucks? They are carrying the
mineral coal”, replied Sukant.
“What are minerals?,” asked
Kiri. Sukant replied, “Have
you ever seen a baker baking
biscuits? The flour, milk, sugar
and sometimes eggs are mixed
together. While eating the baked biscuits can you see
these ingredients separately? Just as in the biscuits,
there are a number of things that you cannot see,
rocks on this earth have several materials called
minerals mixed in them. These minerals are scattered
throughout the earth’s rocky crust”.
A naturally occurring substance that has a definite
chemical composition is a mineral. Minerals are not
evenly distributed over space. They are concentrated in
a particular area or rock formations. Some minerals are
found in areas which are not easily accessible such as
the Arctic ocean bed and Antarctica.
Minerals are formed in different types of geological
environments, under varying conditions. They are
created by natural processes without any human
interference. They can be identified on the basis of their
physical properties such as colour, density, hardness
and chemical property such as solubility.
Do you know?
The salt in your
food and graphite in
your pencil are also
minerals.
Mineral and
Power Resources
Fig. 3.1: Loading of a truck in
a coal mine
2022-23
Do you know?
A rock is an
aggregate of one or
more minerals but
without definite
composition of
constituent of
mineral. Rocks
from which
minerals are mined
are known as ores.
Although more
than 2,800 types
of minerals have
been identified,
only about 100
are considered ore
minerals.
Types of Minerals There are over three thousand different minerals.
On the basis of composition, minerals are classified
mainly as metallic and non-metallic minerals (Fig. 3.2).
Minerals
Metallic
Ferrous
Non-metallic
Non-ferrous
Fig. 3.2: Classification of Minerals
Extraction of Minerals
Mining
Open cast
mining
Drilling
Shaft
mining
Quarrying
Fig. 3.3: Extraction of Minerals
Metallic minerals contain metal in raw form. Metals are
hard substances that conduct heat and electricity and
have a characteristic lustre or shine. Iron ore, bauxite,
manganese ore are some examples. Metallic minerals
may be fer rous or non-ferrous. Ferrous minerals like
iron ore, manganese and chromites contain iron. A
non-ferrous mineral does not contain iron but may contain
some other metal such as gold, silver, copper or lead.
Non-metallic minerals do not contain metals.
Limestone, mica and gypsum are examples of such
minerals. The mineral fuels like coal and petroleum are
also non-metallic minerals.
Minerals can be extracted by mining, drilling or
quarrying (Fig 3.3).
The process of taking out minerals from rocks buried
under the earth’s surface is called mining. Minerals that
lie at shallow depths are taken out by removing the surface
layer; this is known as open-cast mining. Deep bores, called
shafts, have to be made to reach mineral deposits that lie
at great depths. This is called shaft mining. Petroleum
and natural gas occur far below the earth’s surface. Deep
wells are bored to take them out, this is called drilling
(Fig 3.4). Minerals that lie near the surface are simply dug
out, by the process known as quarrying.
Fig. 3.4: Off shore
drilling of oil
Mineral and Power r esources 23
2022-23
Page 3
Kiri was visiting Sukant in his
native place near Dhanbad. Kiri
was amazed to see that large
areas were black. “Sukant, why
is this place so black and dusty?”
she asked. “This is because of the
coal mines nearby. Do you see
the trucks? They are carrying the
mineral coal”, replied Sukant.
“What are minerals?,” asked
Kiri. Sukant replied, “Have
you ever seen a baker baking
biscuits? The flour, milk, sugar
and sometimes eggs are mixed
together. While eating the baked biscuits can you see
these ingredients separately? Just as in the biscuits,
there are a number of things that you cannot see,
rocks on this earth have several materials called
minerals mixed in them. These minerals are scattered
throughout the earth’s rocky crust”.
A naturally occurring substance that has a definite
chemical composition is a mineral. Minerals are not
evenly distributed over space. They are concentrated in
a particular area or rock formations. Some minerals are
found in areas which are not easily accessible such as
the Arctic ocean bed and Antarctica.
Minerals are formed in different types of geological
environments, under varying conditions. They are
created by natural processes without any human
interference. They can be identified on the basis of their
physical properties such as colour, density, hardness
and chemical property such as solubility.
Do you know?
The salt in your
food and graphite in
your pencil are also
minerals.
Mineral and
Power Resources
Fig. 3.1: Loading of a truck in
a coal mine
2022-23
Do you know?
A rock is an
aggregate of one or
more minerals but
without definite
composition of
constituent of
mineral. Rocks
from which
minerals are mined
are known as ores.
Although more
than 2,800 types
of minerals have
been identified,
only about 100
are considered ore
minerals.
Types of Minerals There are over three thousand different minerals.
On the basis of composition, minerals are classified
mainly as metallic and non-metallic minerals (Fig. 3.2).
Minerals
Metallic
Ferrous
Non-metallic
Non-ferrous
Fig. 3.2: Classification of Minerals
Extraction of Minerals
Mining
Open cast
mining
Drilling
Shaft
mining
Quarrying
Fig. 3.3: Extraction of Minerals
Metallic minerals contain metal in raw form. Metals are
hard substances that conduct heat and electricity and
have a characteristic lustre or shine. Iron ore, bauxite,
manganese ore are some examples. Metallic minerals
may be fer rous or non-ferrous. Ferrous minerals like
iron ore, manganese and chromites contain iron. A
non-ferrous mineral does not contain iron but may contain
some other metal such as gold, silver, copper or lead.
Non-metallic minerals do not contain metals.
Limestone, mica and gypsum are examples of such
minerals. The mineral fuels like coal and petroleum are
also non-metallic minerals.
Minerals can be extracted by mining, drilling or
quarrying (Fig 3.3).
The process of taking out minerals from rocks buried
under the earth’s surface is called mining. Minerals that
lie at shallow depths are taken out by removing the surface
layer; this is known as open-cast mining. Deep bores, called
shafts, have to be made to reach mineral deposits that lie
at great depths. This is called shaft mining. Petroleum
and natural gas occur far below the earth’s surface. Deep
wells are bored to take them out, this is called drilling
(Fig 3.4). Minerals that lie near the surface are simply dug
out, by the process known as quarrying.
Fig. 3.4: Off shore
drilling of oil
Mineral and Power r esources 23
2022-23
24 r esources and d eveloPMent DisTribuTion of Minerals Minerals occur in different types of rocks. Some are
found in igneous rocks, some in metamorphic rocks
while others occur in sedimentary rocks. Generally,
metallic minerals are found in igneous and metamorphic
rock formations that form large plateaus. Iron-ore in
north Sweden, copper and nickel deposits in Ontario,
Canada, iron, nickel, chromites and platinum in South
Africa are examples of minerals found in igneous and
metamorphic rocks. Sedimentary rock formations of
plains and young fold mountains contain non-metallic
minerals like limestone. Limestone deposits of Caucasus
region of France, manganese deposits of Georgia and
Ukraine and phosphate beds of Algeria are some
examples. Mineral fuels such as coal and petroleum are
also found in the sedimentary strata.
a sia China and India have large iron ore deposits.
The continent produces more than half of the world’s tin.
Do you know?
You can always tell
if a rock contains
copper because
then the rock looks
blue in colour.
Fig. 3.5: World: Distribution of Iron, Copper and Bauxite
2022-23
Page 4
Kiri was visiting Sukant in his
native place near Dhanbad. Kiri
was amazed to see that large
areas were black. “Sukant, why
is this place so black and dusty?”
she asked. “This is because of the
coal mines nearby. Do you see
the trucks? They are carrying the
mineral coal”, replied Sukant.
“What are minerals?,” asked
Kiri. Sukant replied, “Have
you ever seen a baker baking
biscuits? The flour, milk, sugar
and sometimes eggs are mixed
together. While eating the baked biscuits can you see
these ingredients separately? Just as in the biscuits,
there are a number of things that you cannot see,
rocks on this earth have several materials called
minerals mixed in them. These minerals are scattered
throughout the earth’s rocky crust”.
A naturally occurring substance that has a definite
chemical composition is a mineral. Minerals are not
evenly distributed over space. They are concentrated in
a particular area or rock formations. Some minerals are
found in areas which are not easily accessible such as
the Arctic ocean bed and Antarctica.
Minerals are formed in different types of geological
environments, under varying conditions. They are
created by natural processes without any human
interference. They can be identified on the basis of their
physical properties such as colour, density, hardness
and chemical property such as solubility.
Do you know?
The salt in your
food and graphite in
your pencil are also
minerals.
Mineral and
Power Resources
Fig. 3.1: Loading of a truck in
a coal mine
2022-23
Do you know?
A rock is an
aggregate of one or
more minerals but
without definite
composition of
constituent of
mineral. Rocks
from which
minerals are mined
are known as ores.
Although more
than 2,800 types
of minerals have
been identified,
only about 100
are considered ore
minerals.
Types of Minerals There are over three thousand different minerals.
On the basis of composition, minerals are classified
mainly as metallic and non-metallic minerals (Fig. 3.2).
Minerals
Metallic
Ferrous
Non-metallic
Non-ferrous
Fig. 3.2: Classification of Minerals
Extraction of Minerals
Mining
Open cast
mining
Drilling
Shaft
mining
Quarrying
Fig. 3.3: Extraction of Minerals
Metallic minerals contain metal in raw form. Metals are
hard substances that conduct heat and electricity and
have a characteristic lustre or shine. Iron ore, bauxite,
manganese ore are some examples. Metallic minerals
may be fer rous or non-ferrous. Ferrous minerals like
iron ore, manganese and chromites contain iron. A
non-ferrous mineral does not contain iron but may contain
some other metal such as gold, silver, copper or lead.
Non-metallic minerals do not contain metals.
Limestone, mica and gypsum are examples of such
minerals. The mineral fuels like coal and petroleum are
also non-metallic minerals.
Minerals can be extracted by mining, drilling or
quarrying (Fig 3.3).
The process of taking out minerals from rocks buried
under the earth’s surface is called mining. Minerals that
lie at shallow depths are taken out by removing the surface
layer; this is known as open-cast mining. Deep bores, called
shafts, have to be made to reach mineral deposits that lie
at great depths. This is called shaft mining. Petroleum
and natural gas occur far below the earth’s surface. Deep
wells are bored to take them out, this is called drilling
(Fig 3.4). Minerals that lie near the surface are simply dug
out, by the process known as quarrying.
Fig. 3.4: Off shore
drilling of oil
Mineral and Power r esources 23
2022-23
24 r esources and d eveloPMent DisTribuTion of Minerals Minerals occur in different types of rocks. Some are
found in igneous rocks, some in metamorphic rocks
while others occur in sedimentary rocks. Generally,
metallic minerals are found in igneous and metamorphic
rock formations that form large plateaus. Iron-ore in
north Sweden, copper and nickel deposits in Ontario,
Canada, iron, nickel, chromites and platinum in South
Africa are examples of minerals found in igneous and
metamorphic rocks. Sedimentary rock formations of
plains and young fold mountains contain non-metallic
minerals like limestone. Limestone deposits of Caucasus
region of France, manganese deposits of Georgia and
Ukraine and phosphate beds of Algeria are some
examples. Mineral fuels such as coal and petroleum are
also found in the sedimentary strata.
a sia China and India have large iron ore deposits.
The continent produces more than half of the world’s tin.
Do you know?
You can always tell
if a rock contains
copper because
then the rock looks
blue in colour.
Fig. 3.5: World: Distribution of Iron, Copper and Bauxite
2022-23
Mineral and Power r esources 25
Do you know?
Switzerland has
no known mineral
deposit in it.
Let’s do
Identify the
Canadian Shield,
the Appalachians,
Western Cordilleras
and Lake Superior
with the help of an
atlas.
China, Malaysia and Indonesia are among the world’s
leading tin producers. China also leads in production of
lead, antimony and tungsten. Asia also has deposits of
manganese, bauxite, nickel, zinc and copper.
e urope Europe is the leading producer of iron-ore in the world.
The countries with large deposits of iron ore are Russia,
Ukraine, Sweden and France. Minerals deposits of
copper, lead, zinc, manganese and nickel are found in
eastern Europe and European Russia.
n orTh a Merica The mineral deposits in North America are located in
three zones: the Canadian region north of the Great
Lakes, the Appalachian region and the mountain ranges
of the west. Iron ore, nickel, gold, uranium and copper
are mined in the Canadian Shield Region, coal in the
Appalachians region. Western Cordilleras have vast
deposits of copper, lead, zinc, gold and silver.
Fig 3.6: World: Distribution of Mineral Oil and Coal
2022-23
Page 5
Kiri was visiting Sukant in his
native place near Dhanbad. Kiri
was amazed to see that large
areas were black. “Sukant, why
is this place so black and dusty?”
she asked. “This is because of the
coal mines nearby. Do you see
the trucks? They are carrying the
mineral coal”, replied Sukant.
“What are minerals?,” asked
Kiri. Sukant replied, “Have
you ever seen a baker baking
biscuits? The flour, milk, sugar
and sometimes eggs are mixed
together. While eating the baked biscuits can you see
these ingredients separately? Just as in the biscuits,
there are a number of things that you cannot see,
rocks on this earth have several materials called
minerals mixed in them. These minerals are scattered
throughout the earth’s rocky crust”.
A naturally occurring substance that has a definite
chemical composition is a mineral. Minerals are not
evenly distributed over space. They are concentrated in
a particular area or rock formations. Some minerals are
found in areas which are not easily accessible such as
the Arctic ocean bed and Antarctica.
Minerals are formed in different types of geological
environments, under varying conditions. They are
created by natural processes without any human
interference. They can be identified on the basis of their
physical properties such as colour, density, hardness
and chemical property such as solubility.
Do you know?
The salt in your
food and graphite in
your pencil are also
minerals.
Mineral and
Power Resources
Fig. 3.1: Loading of a truck in
a coal mine
2022-23
Do you know?
A rock is an
aggregate of one or
more minerals but
without definite
composition of
constituent of
mineral. Rocks
from which
minerals are mined
are known as ores.
Although more
than 2,800 types
of minerals have
been identified,
only about 100
are considered ore
minerals.
Types of Minerals There are over three thousand different minerals.
On the basis of composition, minerals are classified
mainly as metallic and non-metallic minerals (Fig. 3.2).
Minerals
Metallic
Ferrous
Non-metallic
Non-ferrous
Fig. 3.2: Classification of Minerals
Extraction of Minerals
Mining
Open cast
mining
Drilling
Shaft
mining
Quarrying
Fig. 3.3: Extraction of Minerals
Metallic minerals contain metal in raw form. Metals are
hard substances that conduct heat and electricity and
have a characteristic lustre or shine. Iron ore, bauxite,
manganese ore are some examples. Metallic minerals
may be fer rous or non-ferrous. Ferrous minerals like
iron ore, manganese and chromites contain iron. A
non-ferrous mineral does not contain iron but may contain
some other metal such as gold, silver, copper or lead.
Non-metallic minerals do not contain metals.
Limestone, mica and gypsum are examples of such
minerals. The mineral fuels like coal and petroleum are
also non-metallic minerals.
Minerals can be extracted by mining, drilling or
quarrying (Fig 3.3).
The process of taking out minerals from rocks buried
under the earth’s surface is called mining. Minerals that
lie at shallow depths are taken out by removing the surface
layer; this is known as open-cast mining. Deep bores, called
shafts, have to be made to reach mineral deposits that lie
at great depths. This is called shaft mining. Petroleum
and natural gas occur far below the earth’s surface. Deep
wells are bored to take them out, this is called drilling
(Fig 3.4). Minerals that lie near the surface are simply dug
out, by the process known as quarrying.
Fig. 3.4: Off shore
drilling of oil
Mineral and Power r esources 23
2022-23
24 r esources and d eveloPMent DisTribuTion of Minerals Minerals occur in different types of rocks. Some are
found in igneous rocks, some in metamorphic rocks
while others occur in sedimentary rocks. Generally,
metallic minerals are found in igneous and metamorphic
rock formations that form large plateaus. Iron-ore in
north Sweden, copper and nickel deposits in Ontario,
Canada, iron, nickel, chromites and platinum in South
Africa are examples of minerals found in igneous and
metamorphic rocks. Sedimentary rock formations of
plains and young fold mountains contain non-metallic
minerals like limestone. Limestone deposits of Caucasus
region of France, manganese deposits of Georgia and
Ukraine and phosphate beds of Algeria are some
examples. Mineral fuels such as coal and petroleum are
also found in the sedimentary strata.
a sia China and India have large iron ore deposits.
The continent produces more than half of the world’s tin.
Do you know?
You can always tell
if a rock contains
copper because
then the rock looks
blue in colour.
Fig. 3.5: World: Distribution of Iron, Copper and Bauxite
2022-23
Mineral and Power r esources 25
Do you know?
Switzerland has
no known mineral
deposit in it.
Let’s do
Identify the
Canadian Shield,
the Appalachians,
Western Cordilleras
and Lake Superior
with the help of an
atlas.
China, Malaysia and Indonesia are among the world’s
leading tin producers. China also leads in production of
lead, antimony and tungsten. Asia also has deposits of
manganese, bauxite, nickel, zinc and copper.
e urope Europe is the leading producer of iron-ore in the world.
The countries with large deposits of iron ore are Russia,
Ukraine, Sweden and France. Minerals deposits of
copper, lead, zinc, manganese and nickel are found in
eastern Europe and European Russia.
n orTh a Merica The mineral deposits in North America are located in
three zones: the Canadian region north of the Great
Lakes, the Appalachian region and the mountain ranges
of the west. Iron ore, nickel, gold, uranium and copper
are mined in the Canadian Shield Region, coal in the
Appalachians region. Western Cordilleras have vast
deposits of copper, lead, zinc, gold and silver.
Fig 3.6: World: Distribution of Mineral Oil and Coal
2022-23
26 ResouRces and d evelopment South AmericA
Brazil is the largest producer of high grade iron-ore
in the world. Chile and Peru are leading producers of
copper. Brazil and Bolivia are among the world’s largest
producers of tin. South America also has large deposits of
gold, silver, zinc, chromium, manganese, bauxite, mica,
platinum, asbestos and diamond. Mineral oil is found in
Venezuela, Argentina, Chile, Peru and Columbia.
AfricA
Africa is rich in mineral resources. It is the world’s
largest producer of diamonds, gold and platinum. South
Africa, Zimbabwe and Zaire produce a large portion of
the world’s gold. The other minerals found in Africa
are copper, iron ore, chromium, uranium, cobalt and
bauxite. Oil is found in Nigeria, Libya and Angola.
AuStrAliA
Australia is the largest producer of bauxite in the world.
It is a leading producer of gold, diamond, iron ore, tin
and nickel. It is also rich in copper, lead, zinc and
manganese. Kalgoorlie and Coolgardie areas of western
Australia have the largest deposits of gold.
AntArcticA
The geology of Antarctica is sufficiently well known to
predict the existence of a variety of mineral deposits,
some probably large. Significant size of deposits of
coal in the Transantarctic Mountains and iron near
the Prince Charles Mountains of East Antarctica is
forecasted. Iron ore, gold, silver and oil are also present
in commercial quantities.
u SeS of m inerAlS
Minerals are used in many industries. Minerals which
are used for gems are usually hard. These are then
set in various styles for jewellery. Copper is another
metal used in everything from coins to pipes. Silicon,
used in the computer industry is obtained from quartz.
Aluminum obtained from its ore bauxite is used in
automobiles and airplanes, bottling industry, buildings
and even in kitchen cookware.
Do you know?
The oldest rocks
in the world are in
Western Australia.
They date from
4,300 million
years ago, only
300 million years
after the earth was
formed.
Let’s do
List uses of any
five minerals.
2022-23
Read More