Definition

Describing a type of igneous rock that is rich in light-colored minerals, such as quartz and feldspar.

Example

The felsic rocks are often lighter in color and less dense than mafic rocks.

Conversation

I recently learned about different types of rocks in my geology class.

Oh really? Did you come across any interesting ones?

Yeah, we talked about felsic rocks and their light-colored minerals.

That sounds cool! I didn't know there were specific categories like that.

Synonyms & Antonyms

Root Explanation

Felsic is formed from "feldspar" (a group of rock-forming minerals) and "silica" (from Latin "silex", meaning flint or hard stone). The term describes igneous rocks that are rich in feldspar and silica, indicating a light color and low density.

Memory Tip

Think of 'feldspar' and 'silica' as the main components of these light-colored rocks, helping you remember that 'felsic' refers to rocks rich in these minerals.

Visually Confused Words