Accepted Answer
Basalt is a dark-coloured, fine-grained, igneous rock composed mainly of plagioclase and pyroxene minerals.Gabbro is any of several medium or coarse-grained rocks that consist primarily of plagioclase feldspar and pyroxene.What is a mineral?A mineral is a naturally occurring inorganic element or compound having an orderly internal structure.For more information about the mineral; refer to the link,https://brainly.com/question/18078524