This presentation is regarding how granite used in architecture..

1. GRANITE
QUEEN OF STONES

2. CONTENTS
 INTRODUCTION
 HOW IS GRANITE FORMED?
 PROCESS OF EXTRACTION
 MARKETING
 GRANITE MINES IN INDIA
 APPLICATIONS
 ADVANTAGES
 FAMOUS BUILDINGS

3. INTRODUCTION
 Granite is a common type of igneous rock, that is granular.
 Granites can be predominantly white,pink,or grey in colour depending on
there mineralogy.
 The word ‘GRANITE’ comes from the Latin word granum , a grain, in
reference to the coarse grained structure of the rock.
 Granite has 20% quartz and up to 65% alkali feldspar by volume .

4. How granite is formed???
 Granite is formed underground by the cooling of magma. Deep
within the earth, beyond the mantle layer, lies a deep layer of
molten rock. The molten rock is formed when the naturally
occurring radioactive elements within the ground break down and
decay. The reaction of the decaying material releases large amounts
of heat, melting the rocks around it. As geological events happen
(such as the moving of plates or the build up of pressure from the
heat), the molten rocks are pushed toward the surface. As the rock
gets closer to the surface, it also cools, creating internal igneous
rocks. One of these such rocks is granite. Granite can be a mixture
of mainly quartz and feldspar but also may contain mica.

5. THE PROCESS OF EXTRACTION IN
GRANITE QUARRY
Mining:
Granite mining is a large
industrial process which
begins with exposing a
granite deposit. Once the
granite deposit is exposed
open cast mining is the
usual way to exploit the
reserves.
Cutting :
Granite is then extracted
from the mine which is in
itself a difficult process.
Granite is usually drilled
then hammered to
separate individual blocks
which are then lifted to the
surface of the mine with
cranes to be transported to
a near by processing plant.
Polishing:
Polishing granite is done in
multi stages, starting with a
very rough course diamond
polishing. Once the first stage
is complete the process is
repeated using a less course
diamond polishing and
repeated a number of times.
Once individual cut-outs are
made from granite worktops,
the process is followed again
but this time by hand to
achieve the desired finish.

6. Granite Quarrying

7. Granite Polishing

8. Dispatch Section..

9. MARKETING:
Marketing of granite is mainly done in fairs held in different countries, which
is attended by buyers from all over the world.
For example:
STONA fair – India
EURONA fair- Europe
JAMMI fair- China

10. GRANITE MINES
IN INDIA:
India has varieties of granite in over
200 shades. As on 2005, Granite
reserves in India was 37,426 million
cubic metres and ranked fifth in
export of processed product.
Resources are found in Madhya
Pradesh, Orissa, Tamil Nadu,
Karnataka(ILKAL), Jharkhand,
Rajasthan and Andhra Pradesh

11. APPLICATIONS OF GRANITE:
Granite stone is used in buildings, bridges, paving, monuments and many
other exterior projects.
It is also used for making interior artefacts, idols, burial caskets etc
Polished granite slabs and tiles are used in countertops, tile floors, stair
treads and many other design elements.
Granite is a prestige material, used in projects to produce impressions of
elegance and quality.
In many rooms, a granite floor offers a long-lasting, shiny appearance.
Granite stone also extends the lifespan of bridges.

12. Advantages:
 • One of the main reasons people select granite is because of its natural beauty. The
coloration will never change so it will always be as bright and vibrant as when it is first
installed.
 • Granite is very competitively priced and a sketch of your countertops is all that's needed
for an estimate. Quarter-inch beveled and round edges are considered standard and the price
increases with more labor-intensive edges such as a bullnose or ogee.
 • One major advantage in choosing granite is that it won’t scratch or chip with normal use.
Only another piece of granite, or something harder, like diamond, will leave marks. In
addition, it is heat resistant ,so items from the oven can be placed right on the counter
without a problem.
 • No two slabs of granite are ever exactly the same, like fingerprints. Regardless of how
common a specific stone is, each application of that stone is unique and beautiful in its own
context.


13. Granite Market in India-
comparison

14. Famous Granite Structures.
Mount Rushmore Rockefeller Centre Capitol building

17. Granite monuments in
houses…

19. THANK YOU
-NSS Akhil
-Nikhila
-Kaavya
-Niriksha
-Roshini
-Richa