Went to unlock bill turner last night.... Headed off into the ice rings and the rng gods where shining down on me!
Took me 3 hours to get 50 tonnes of brom not sure if that's good or bad. The yield was between 2% and 14% from approx 1 in 6 asteroids prospected
Now the gods of rng made low pressure diamonds my bonus... 18 of em I mined last night giving me just over 1 million credits - turned a grind into something worth while