Which of the following would be an important observation that could help you identify a metamorphic rock? Choose one: A. the presence of calcite B. sand grains that break along grain boundaries C. the arrangement of mineral grains into a foliation D. large crystal size
An important observation that could help you identify a metamorphic rock is c. the arrangement of mineral grains into a foliation.
Explanation:
Metamorphic rocks can be identified by the foliation which is the layered characteristics of these type of rocks. The process occurs during recrystallization resulting in a foliated rock with bands of different colors depending on the minerals that form them.
