Electric fields deep in Earth’s mantle helps diamond crystallise
By 
Katrina Krämer2021-01-29T09:30:00
Electrochemical experiments under extreme conditions show diamonds forming from molten carbonate rocks
Scientists have uncovered a new facet to diamond formation: electric fields deep in the Earth’s mantle that trigger crystallisation. Apart from extreme temperatures and pressures, chemically induced voltage gradients might be key to how diamond form from molten rocks.