Question

Igneous rocks are made up of solidification of lava or magma then why the colour of the rock is in light colour?

Answer 1

Answer:

because it is the colour only

Answer 2

Answer:

Not every igneous rocks are of light color or dark color

Explanation:

The most general classification is based on the relative abundance in a rock of felsic (feldspar and silica-quartz) minerals vs mafic (magnesium and ferrum or iron) minerals. Felsic minerals (quartz, K feldspar, etc) are light colored while mafic minerals (hornblende, pyroxenes) are normally dark colored.

Example of light colored Igneous rock is : Granite is a coarse-grained, light-colored, intrusive igneous rock that contains mainly quartz, feldspar, and mica minerals