UPDATE MINES
Since Mines really don't have people in them, they are kinda uselles wich is shame because it's really good way of making Gralats.
What makes it disaster?
All minerals are looking same and there ain't anything new, too slow, prices are bit too low so It's not really encouraging to mine (10 mins for 100 gralats is ... slow)
How about throwing in some diamonds with 10% chance of getting, that sell with good 500 gralats?