METAMORPHIC ROCK

WHAT IS IT?

• Metamorphic rock is a rock that forms when the texture and composition of preexisting rock changes due to heat and pressure.
• Metamorphic rocks name came from the Greek word 'meta' meaning changed and 'morpho' meaning form.

WHAT IT'S MADE OF?

• Metamorphic rock can be formed by any other type of rock (sedimentary and igneous rock)
• Slate is formed by shale and marble is formed by limestone

TYPES OF METAMORPHIC ROCK

• Slate
• Marble
• Phyllite
• Quartzite
• Schist
• Serpentine
• Gneiss
• Hornfels

ROCKS UNDERGOING METAMORPHISM

• One way rock can undergo metamorphism is by being heated by nearby magma
• When a rock goes through metamorphism the original rock changes into new minerals that are more stable

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FOLIATED AND NON FOLIATED

• Foliated means when the rock consists of minerals that are aligned and look almost like pages in a book
• Non foliated means metamorphic rock that does not appear to have any regular pattern

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