Which low- grade metamorphic rock, composed of extremely fine- sized mica and other mineral grains, typically exhibits well- developed rock cleavage?
A)hornfels
B)slate
C)schist
D)quartzite

Question

Quizplus · Accepted Answer

Low-grade metamorphic rock composed of fine-sized mica and other mineral grains typically exhibits well-developed rock cleavage. Slate is the commonly known rock, which is formed by low-grade metamorphism of shale or mudstone. It is composed of extremely fine-sized mica and other mineral grains, giving it a smooth texture and exhibiting well-developed rock cleavage. Hornfels, schist, and quartzite are also low-grade metamorphic rocks, but they do not exhibit the same level of rock cleavage as slate.

Which Low- Grade Metamorphic Rock, Composed of Extremely Fine- Sized