Question

What type of composition does an igneous rock have that contains mostly plagioclase feldspar and about 30 percent dark silicate minerals?

Answer 1

An igneous rock that contains mostly plagioclase feldspar and about 30 percent dark silicate minerals has a composition that is andesitic. :)

Answer 2

The type of composition that igneous rocks have that contains mostly plagioclase feldspar and about 30 percent dark silicate minerals would be andesitic. I am hoping that this answer has satisfied your query about and it will be able to help you.