How are crystals in metamorphic rocks arranged?

In metamorphic rocks, crystals are typically arranged in a foliated or non-foliated texture. Foliated metamorphic rocks, like schist and slate, exhibit a layered or banded appearance due to the alignment of platy minerals under directed pressure. Non-foliated metamorphic rocks, such as marble and quartzite, do not show this layering and have a more uniform crystal arrangement, often resulting from uniform pressure and temperature conditions. Overall, the arrangement of crystals reflects the conditions under which the metamorphism occurred.