Foliated: gneiss, slate, schist, phyllite. Non-Foliated: quartzite, marble.
Foliated metamorphic is when the rock texture is arranged in planes or bands. Nonfoliated is when the rock texture is not arranged in planes or bands.
Examples of non-foliated metamorphic rocks are quartzite and marble.
A quatzite and a marble
Non-foliated metamorphic rocks such as quartzite and marble do not display the banding or layering that are present in foliated rocks. This is because their parent rock was usually sedimentary and...