Foliated metamorphic rocks have mineral grains that are randomly placed. t f

Foliated metamorphic rocks have mineral grains that are randomly placed.
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  1. Foliated metamorphic rocks have mineral grains that line up in parallel layers. The correct answer is foliated. 

  2. It is false that foliated metamorphic rocks have mineral grains that are randomly placed. As a matter of fact, foliated refers to the quality of minerals in a metamorphic rock are aligned in sheets or bands, which means their placement is not random, but patterned. 

  3. Foliated metamorphic rocks have mineral grains that line up in parallel layers. Correct B The foliation of the rocks is caused by the re-alignment of minerals when they  experience high pressure and temperature. The layers can have different thickness, they can be very thin but also thick. Non-foliated metamorphic rocks on the other hand do not have a layered or banded appearance.

  4. The given statement is true.

    The metamorphic rocks are the rocks formed by the metamorphosis of the sedimentary and the igneous rocks due to presnece of high pressure and heat. These rocks can be either foliated or non foliated.

    The foliated forms of the rocks show the realignment of the minerals due to high pressure and temperature. Due to the realignment, the different minerals represent a specific line and the direction of the pressure. The direction of the pressure is perpendicular to the mineral alignments.  

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