1. IGNEOUS
ROCKS
David Suescún Pelegay

2. INDEX
O 1.- Definition.
O 2.- Examples.
O 3.- Classification.
O 4.- Uses.

3. 1.- Definition
O The igneous rock, A.K.A. “Born of
fire” is one of the three main rock
types. Igneous rock is formed
through the cooling and
solidification of magma or lava.
Igneous rock may form with or
without crystallization, below the
surface are (plutonic) rocks and on
the surface as (volcanic) rocks.

4. 2.- Examples. Basalt

5. 2.- Examples. Pumice

6. 2.- Examples. Marble

7. 2.- Examples. Granite

8. 2.- Examples. Obsidian

9. 2.- Examples. Rhyolite

10. 2.- Examples. Dacite

11. 3.- Clasification
O The igneous rocks are classified into:
1. Plutonic: Are the sub-type of the
igneous rocks, but this rocks are formed
inside the Earth. Granite.
2. Volcanic: Are the sub-type of the
igneous rocks, but this rocks are formed
inside the Earth. Basalt.

12. 4.- Uses
O The igneous rocks are very useful to
decorate. For example, some floors are
made up of granite, some tables are also
made up of marble, and the pumice is
used in the cosmetic area.

13. THE END