OLDONYO LENGAI MOUNTAIN
Oldonyo Lengai Mountain #Tanzania Ol Doinyo Lengai, "Mountain of God" in the Maasai language, is an active volcano located in the Gregory Rift, south of Lake Natron. 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.