Question

Why is granite (a rock created by cooling magma) composed of minerals, but magma in a liquid state underground is not?

A) Granite is not naturally occurring.
B) Granite is a solid, but magma is not.
C) Magma does not have a chemical composition.
D) Granite is not composed of minerals.

Answer 1

Granite is made of minerals that crystallize from cooling magma, forming an intrusive igneous rock with a coarse-grained texture.

Step-by-step explanation:

Magma is a molten mix of minerals and dissolved gases, but it's not considered mineral itself due to its liquid state. As magma cools slowly underground, the process allows large crystals to form, resulting in a coarse-grained intrusive igneous rock like granite. Granite is composed of minerals such as quartz, feldspar, and mica, which are identifiable by their crystal structure, stable chemical composition, and inorganic nature when in solid form.