A hammer formed with a face at one end, and a thick, blunt edge, parallel with the handle, at the other, used for breaking stone.

A perpend. / A flat gravestone.

An echinite.

A kind of crust deposited in wine casks; crude argol.

(dated) stone's throw

A cromlech.

Alternative letter-case form of Stone Age

A stone laid during the construction of a (usually important) building, the laying of which is usually marked by a ceremony. / (figuratively) The basis of something.

The fossil stem of an encrinite.

plural of moa stone