Metamorphic Rocks
Metamorphic means “change of form” in Greek.Metamorphic rocks were all once other kinds of rocks. They were CHANGED to b...
 Metamorphic rocks are  made by heat and  pressure. When rocks are close to  the mantle (by the hot  magma) they are  ch...
Metamorphic rocks are also made when plate are pushed together. The pressure from two huge tectonic plates can change roc...
Shale turns to Slate                  Schist turns to                  Gneiss
Minerals in Metamorphic Rocks Rocks are made of minerals. Minerals in metamorphic rocks  become tightly packed and large....
Identifying Metamorphic RocksRock        Color       Foliated   Grain SizeSlate       Dark gray   Yes        fineSchist   ...
Using Metamorphic RocksMetamorphic rocks are used for many different things.Marble is commonly used for buildings and sc...
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Metamorphic rocks

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Metamorphic rocks

  1. 1. Metamorphic Rocks
  2. 2. Metamorphic means “change of form” in Greek.Metamorphic rocks were all once other kinds of rocks. They were CHANGED to become metamorphic rocks.
  3. 3.  Metamorphic rocks are made by heat and pressure. When rocks are close to the mantle (by the hot magma) they are changed. When rocks are pushed down below other rocks (plate movement) then the pressure also changes rock into metamorphic.
  4. 4. Metamorphic rocks are also made when plate are pushed together. The pressure from two huge tectonic plates can change rocks into metamorphic.
  5. 5. Shale turns to Slate Schist turns to Gneiss
  6. 6. Minerals in Metamorphic Rocks Rocks are made of minerals. Minerals in metamorphic rocks become tightly packed and large. (can CHANGE minerals into different minerals) Minerals only found in metamorphic rocks:  Chlorite  Garnet  Staurolite  kyanite
  7. 7. Identifying Metamorphic RocksRock Color Foliated Grain SizeSlate Dark gray Yes fineSchist Mixture No MediumGneiss Pink/gray Yes coarseMarble Light No CoarseQuartzite Light Not coarse
  8. 8. Using Metamorphic RocksMetamorphic rocks are used for many different things.Marble is commonly used for buildings and sculptures.Slate is used to make tiles for roofs.

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