How are foliated metamorphic rocks classified? Describe some of ...

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How are foliated metamorphic rocks classified? Describe some of the rock types found at different
  grades of foliated metamorphic rocks. What will be an ideal response?

Question 2

How are metamorphic rocks classified? What are the two main classifications, and how are they
  different from each other? What will be an ideal response?

[stano32]

Answer to Question 1

Foliated metamorphic rocks can be arranged in order of increasing grain size, perfection of their
foliation, or both. Slate is fine-grained, followed by (in increasingly larger grain size) phyllite and
schist; gneiss displays segregated bands of minerals. Amphibolite is another fairly common foliated
metamorphic rock. Migmatities have both igneous and high-grade metamorphic characteristics

Answer to Question 2

Metamorphic rocks are primarily classified according to their texture. In a foliated texture, platy and
elongate minerals have a preferred orientation. A nonfoliated texture does not exhibit any discernable
preferred orientation of the mineral grains

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YES! Correct, THANKS for helping me on my review

[gcook]

TYSM