What Is the Difference between Foliated and Non Foliated Metamorphic Rocks?

Answer

The difference between foliated metamorphic rocks and non foliated metamorphic rocks is that foliated rocks show banding throughout. The banding is caused by pressure that is placed upon the rocks as they form. Gneiss and schist are two types of foliated rock. Non foliated rock has no banding or layers. Examples of non foliated rock are marble and quartzite.
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