What are rocks have a more balanced composition of minerals and density than basaltic or granitic rocks?

Rocks with a more balanced composition of minerals and density than basaltic or granitic rocks are typically referred to as intermediate rocks, with andesite being a common example. These rocks have a composition that lies between basalt (rich in iron and magnesium) and granite (rich in silica and aluminum), resulting in a more uniform mineral distribution. Intermediate rocks often display a mix of light and dark minerals, contributing to their balanced characteristics. They are commonly found in volcanic arcs and subduction zones.