\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.