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Rock Types

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An igneous rock is a rock that has cooled directly from Magma. ... The original rock could be an igneous rock or sedimentary rock that is changed ... – PowerPoint PPT presentation

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Title: Rock Types


1
Rock Types
Remember, minerals are a chemical combination of
elements and rocks are physical combinations of
minerals.
2
IGNEOUS ROCKS
An igneous rock is a rock that has cooled
directly from Magma. Whatever minerals present
in the magma become part of the rock as a
physical combination. Examples Granite Basalt
3
Sedimentary Rocks
Sedimentary rocks are rocks that come from
compacting layers of sediment together. The
sediment can be composed of other broken down
pieces of rocks and even some organic
material.ExamplesSandstoneConglomerate
4
Metamorphic Rocks
Metamorphic rocks are rocks that have been
changed by heat and/or pressure. The original
rock could be an igneous rock or sedimentary rock
that is changed by heat and pressure.Examples
SchistSlate
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