How is granite rock formed？It forms from the slow crystallization of magma below Earth's surface. Granite is composed mainly of quartz and feldspar with minor amounts of mica, amphiboles, and other minerals. This mineral composition usually gives granite a red, pink, gray, or white color with dark mineral grains visible throughout the rock.
"Granite": All of the rocks above would be called "granite" in the commercial stone industry.
Post time: Feb-09-2022