The "product" you heard Dadanen going on about is a valuable gemstone known as raw Nashachite. I managed to dig up a goodly amount just before the mines were closed off, actually.
Packed it up and hauled it out, even. But then them Twelve-damned coblyns came along. Not like any coblyns I'd seen before, and hungry only for the good rocks. They had eyes for my gemstones, so I had no choice but to oblige.
The Stone Torches had their hands full evacuating the mines, so they ignored the beasts. Even now, they're only concerned with keeping people out. Please, friend, if you're willing to face the coblyns, would you bring me my Nashachite?