Metamorphic rock is a combination between igneous and sedimentary on how it forms, because it requires heat and preasure in order to form.
There are two types or of metamorphism. The first way is called contact, which is where the rock is baking from nearby magma. The second way is called regional, which is squeezing due to pressure from overlying rock layers.
There are two different types of metamorphic rock textures. The first is foilated, which is when mineral crystals line up in stripes, bands, or sheets. The second is non-foilated. This type does not have stripes or lines because they form from just one mineral.