Why is diorite considered a coarse-grained intermediate rock?
A) It contains a medium amount of silica.
B) It contains a lot of silica.
C) It contains very little silica.
D) It is made up of the elements in the middle of the periodic table.

Question

Quizplus · Accepted Answer

Diorite is considered a coarse-grained intermediate rock because it contains a medium amount of silica, placing it between felsic rocks (which have a high silica content) and mafic rocks (which have a low silica content).

Why Is Diorite Considered a Coarse-Grained Intermediate Rock