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2. PHYSICAL
CLASSIFICATION
OF ROCKS
Unstratified Rocks Stratified Rocks Foliated Rocks

3.  As the name suggests this class of rocks never
shows distinct layers in their structure beside
have a compact massive crystalline structure;
that’s why un-stratified rocks are usually called
as massive rocks. As they are intact in massive
units they can’t be separated easily in layers or
slabs.

4. GRANITE
TRAP ROCK
QUARZITE BASALT ROCK

5.  Stratified rocks are opposite of unstratified
physical class of rocks. Stratified rocks are
composed of layered structures that are
connected as a result of stratification and
possess plane of cleavage or cleavage planes or
bedding planes. These layers and stratum can
be easily detached from one another along that
plane.

6. Sandstone
Lime Stone
Slate

7.  This classification of rocks is very common in
case of metamorphic grout of rocks. Foliated
rocks are formed in a layered structure that has
been induced under lateral pressure. These
rocks have a tendency of splitting along a plane
of definite direction only which is not
necessarily be in parallel direction to each
other, which was the case of stratified rocks.

8. Gneisses Schists

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