Which of the following igneous rocks usually exhibit aphanitic texture?
A) rhyolite, gabbro
B) andesite, rhyolite
C) granite, gabbro
D) andesite, diorite

Question

Quizplus · Accepted Answer

Aphanitic texture is characterized by a fine-grained structure that is too small to be seen with the naked eye, typical of volcanic rocks that cool quickly on the Earth's surface. Rhyolite and andesite are examples of such rocks.

Which of the Following Igneous Rocks Usually Exhibit Aphanitic Texture