Ol Doinyo Lengai (Mountain of God)

Raw Series: Project 6 - Ngorongoro Crater Act 2: Mountain of God (Maasai) You'd feel very small in this world if you were standing there with me! Last Eruption 2006. Ol Doinyo Lengai is the only active volcano known to emit natrocarbonatites, a rare type of volcanic rock that is rich in sodium, potassium, and calcium carbonate, but low in silica. Lava with less silica has a lower viscosity, leading Ol Doinyo Lengai to have some of the fastest flowing lava in the world. Source: https://earthobservatory.nasa.gov/images/148042/ol-doinyo-lengai