The artist carved her flowing clothing with such detail it is hard to believe she is made of stone.

VOA: special.2010.06.23

In your pain and sadness, you may decide that the person you loved is hard-hearted, and in fact,has a heart of stone.

VOA: special.2010.07.18

Like a cherry with a stone inside, if you press it too hard, the stone will fly out.

BBC: Eurovision 2012: Azerbaijan's gays not welcome at home

Being struck hard with a stone cobble might produce this type of injury, the researcher told BBC News.

BBC: 'Earliest' evidence of human violence

It's here that a Kurd named Abdullah Aslan is hard at work rebuilding the roof of a long-abandoned stone hut.

NPR: Turkey Threatens Economic Sanctions on Kurds