Diamond hauled from deep inside Earth holds never-before-seen mineral
ithin a diamond hauled from deep beneath Earth’s surface, scientists have discovered the first example of a never-before-seen mineral. Named davemaoite after prominent geophysicist Ho-kwang (Dave) Mao, the mineral) found on Earth. Another form of CaSiO, known as wollastonite, is commonly found across the globe, but davemaoite has a crystalline structure that forms only under high pressures and temperatures in Earth’s mantle, the mainly solid layer of Earth trapped between the outer core and the crust.
