Which of the following igneous rocks is thought to be common in the Earth's mantle but rare in the crust?
A) pumice
B) peridotite
C) granite
D) pegmatite

Question

Quizplus · Accepted Answer

Peridotite is thought to be common in the Earth's mantle but is rare in the Earth's crust. It is a dense, coarse-grained igneous rock, composed mostly of the minerals olivine and pyroxene, which are typical materials of the Earth's mantle.

Which of the Following Igneous Rocks Is Thought to Be