Question

what is the difference between banded rocks and foliated rocks(in metamorphic rocks)?​

Answer 1

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Foliated rocks are types of metamorphic rock that have parallel bands of grain. Non-foliated rocks are types of metamorphic rock that have no arrangement or bands of grain. Marble is a type of metamorphic rock that originates from limestone.

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Answer 2

Answer:

Banding means that the rock consists of alternating, thin layers (typically 1 mm to 1 cm) of two different mineral compositions. Normally, the two types of layers have the same kinds of minerals, but in different proportions, giving the rock a striped appearance. Banding, by itself, defines a foliation.