A diamond discovered deep beneath Earth’s surface contains a mineral that has never been found before on our planet.

Ancient diamond boulderfrom Botswana has black spots which are apparently a type of mineral that has never been seen before. The mineral, called davemaoite, is a unique window for scientists to see rock chemistry from the depths of the Earth.

A new mineral has been discovered deep inside Earth's mantle, wrapped inside a diamond. The never-before-seen mineral sheds light on the unexplored secrets that remain hidden in Earth's different layers.

Externally, the Botswana diamond is relatively unspectacular. But its interior allows conclusions to be drawn about geophysics deep inside the earth.

The rare mineral contained in this beautiful diamond is a silicate mineral called Davemaoite and can only form in the lower layer or sub-mantle of the earth's crust.

A rare mineral from deep inside Earth's mantle has been found in an unlikely place - embedded inside a flawed diamond.

In diamonds pulled from deep within the Earth’s surface, scientists have found the first example of a mineral never seen before. The mineral is called davemaoite.

The newfound mineral, dubbed davemaoite, only exists deep in Earth’s mantle.

An elusive crystal predicted decades ago has finally been discovered trapped inside a diamond from deep Earth.

A team of researchers affiliated with a host of institutions in the U.S. has found a sample of a mineral previously believed to be unable to exist in nature.

Researchers thought the mineral was impossible to find on Earth's surface.

Researchers just discovered a mineral that shouldn't exist on Earth's surface but was found inside a diamond.