Stock"work` (?), n. [G.
stockwerk.] 1. (Mining) A system of
working in ore, etc., when it lies not in strata or veins, but in
solid masses, so as to be worked in chambers or stories.
2. (Geol.) A metalliferous deposit
characterized by the impregnation of the mass of rock with many small
veins or nests irregularly grouped. This kind of deposit is especially
common with tin ore. Such deposits are worked in floors or
stories.