Which igneous rock is fined grained and has alot of pyroxene?

The igneous rock that is fine-grained and contains a significant amount of pyroxene is basalt. This volcanic rock forms from the rapid cooling of lava at the Earth's surface, resulting in its fine-grained texture. Basalt typically contains minerals like pyroxene and plagioclase feldspar, and it is commonly found in oceanic crust and volcanic islands.