Science and Technology Diamonds Formed Over 700 Km Deep Brought to the Surface a Mineral That Does Not Exist in Earth’s Crust: Davemaoite, a High-Pressure Calcium Silicate Capable of Storing Radioactive Uranium, Thorium, and Potassium, Possibly Responsible for Part of the Heat in the Planet’s Deep Mantle Valdemar Medeiros 14/03/2026 at 15:12