The characteristic used to classify metamorphic rocks as foliated or non-foliated is the arrangement of grains. Foliated metamorphic rocks have a layered or banded appearance due to the alignment of mineral grains under directional pressure, while non-foliated metamorphic rocks do not exhibit this layering and have a more homogenous texture.
Which characteristic is used to classify metamorphic rocks as foliated or non-foliated?
grain size
layer thickness
arrangement of layers
arrangement of grains
1 answer