Question

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

Answer 1

Answer:

The given blank can be filled with andesitic.

Explanation:

An extrusive igneous, volcanic rock, of the composition that comes in between the texture of aphanitic and porphyritic, is known as andesite. Generally, it is the transitional type between rhyolite and basalt. The arrangement of the mineral is generally dominated by plagioclase in addition with other dark silicate minerals.