carbonado
black diamond

He met her eyes, his own hard as black diamond.

She bent down close to the box, examining the black diamond.

Its symbol was a circle within which were nine black diamonds.

Su is disappointed to find that Miles does not have the black diamonds though.

My head was splitting open now, black diamonds forcing themselves through from the inside.

It showed, he said, that the black diamonds might have been produced in a fiery impact.

The distance between the black diamonds seems longer than their diagonals.

The oldest is 8 years old and already skis the black diamond trails.

The trail is categorized as a black diamond, or most difficult, for its terrain.

Almost, because the usual communications icon had been replaced by a black diamond.