Why are igneous rocks that consist of coarse-grained crystals called phaneritic?
A) Phaneritic comes from the Greek word aphaneros, meaning invisible.
B) They form deep within the ocean.
C) Phaneritic comes from the Greek word phaneros, meaning visible.
D) They are porphyritic rocks.

Question

Quizplus · Accepted Answer

The term "phaneritic" comes from the Greek word "phaneros," meaning visible. Igneous rocks that are phaneritic are composed of coarse-grained crystals that are visible to the naked eye, distinguishing them from aphanitic rocks, which have fine-grained crystals that are too small to be seen without magnification.

Why Are Igneous Rocks That Consist of Coarse-Grained Crystals Called