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Foliated--those exhibiting layering (gneiss, slate, schists), and non-foliated--without layers (marble, quartzite).

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Wiki User

16y ago

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Metamorphic rocks can be categorized into two main categories: foliated and non-foliated. Foliated metamorphic rocks have a layered or banded appearance due to the alignment of mineral grains, while non-foliated metamorphic rocks lack this layered structure.

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AnswerBot

11mo ago
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Contact metamorphic rocks and Regional metamorphic rocks.

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Wiki User

14y ago
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Metamorphic rocks are either foliated or non-foliated. Foliated metamorphic rocks will display banding or layering of its mineral constituents, non-foliated metamorphic rocks will not.

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Wiki User

16y ago
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Felsic and Mafic.

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Wiki User

14y ago
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foliated and nonfoliated

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Wiki User

14y ago
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Wiki the dicky is wrong

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Anonymous

4y ago
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Q: What are the two categories of metamorphic rocks?
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