This mod helps you to keep track of your mining sites, with useful data such as the percent mined, and estimated time to depletion.
Providing the player with new tools or adjusting the game interface, without fundamentally changing gameplay.
New Ores and resources as well as machines.
I've just hacked it to show the effect of mining productivity. Fully configurable.
I'll try a pull request (my first ever, and I don't even use git :D) if you're interested.