Since Mt. Etna is a stratovolcano, it produces both, felsic lava, which is high in silica, and mafic lava, which is low in silica. The magma contained in the volcano is made of basalt. The volcano's lava is rich in magnesium, potassium, and iron. The type of lava found at Mt. Etna is a'a. According to previous eruptions, the pyroclastic flow produced is volcanic ash.