What do you call a coarse grained, foliated metamorphic rock having thick bands of dark ferromagnesian minerals alternating with pink feldspar and quartz layers?
A) phyllite
B) hornfels
C) schist
D) gneiss

Question

Quizplus · Accepted Answer

Gneiss is characterized by its coarse-grained, foliated structure and the presence of alternating bands of dark ferromagnesian minerals and lighter minerals such as pink feldspar and quartz. This banding is a result of high-grade metamorphism, where the minerals have been subjected to intense heat and pressure, causing them to segregate into distinct layers.

What Do You Call a Coarse Grained, Foliated Metamorphic Rock