She had brought mats so they wouldn't have to sit on the hard stone.

The impact against the hard stone took her breath away for a moment.

At last she touched down again on the hard stone.

The turquoise had to be cut and ground using harder stones.

And at once all the chocolates changed to little hard stones.

A man with a hammer can break the hardest stone.

He was caught between the Sandgorgon and the hard stone.

But his eyes were hard stones, well tutored how to be.

She looked at him with eyes like hard, dark stones.

Teacher: What does the hard stone do to the boat?