Naturn, from my second-hand Simucon knowledge, mechanical lore will be divided into the following skills:

Smithing, Alchemy, Woodworking, Enchanting, Tailoring, Artistry, Stoneworking

Thus, you're seemingly right on target with your idea of stone lore.

Wryt.

Though other skills may come into play, like woodworking for making and setting of shaft supports.

CAVE IN!!!!!!

Fun fun fun

waiting to be first to die in a cave in, Grimslayer the Miner to be.