Stoneworker is a category profession. Stoneworkers work with stone to produce furniture, blocks, and other goods. They can also work to smooth rough stone and engrave images on it, to increase the value of the fortress.
An adult dwarf whose best skill is either engraver or mason, and who has accumulated enough experience in the other skill (exactly how much is not clear), will be known as a stoneworker. Otherwise the dwarf will be known by his or her higher skill.
The two Stoneworker skills are: