How to talents affect Mining?

[phiwum]

Originally Posted by Shostak

The Architect/Builder talent appears to serve for constructing a mine, but Mundane Talent: Miner would confer knowledge of ore-rich rock and such. Add Business Sense and Mathematics for running the mine efficiently and creative accounting for tax evasion.

These are good points, but I think I'd also give an advantage in productivity to the character with Mining talent. Being a dwarf or one with mining tools gives a 50% speed boost to mining and these benefits stack. I'd give an additional 25% or 50% boost for the talent, just to make it worthwhile for a PC to choose it.