#mineralogy

#mineralogy

A pair of diamonds that formed hundreds of kilometers deep in Earth's malleable mantle both contain specks of materials that form in completely opposing chemical environmentsa combination so unusual that researchers thought their coexistence was almost impossible. The substances' presence provides a window into the chemical goings-on of the mantle and the reactions that form diamonds. The two diamond samples were found in a South African mine. As with plenty of other precious gemstones, they contain what are called inclusionstiny bits of surrounding rocks captured as the diamonds form.

This discovery shows that the Earth is not only active on the surface, but is also in motion deep inside, confirming the convection currents theory.