Well, I got enough mining brawlers to get 75 mining, but I was wondering, when I get 75 mining, would it be best to pot up/pie/stew up and mine concentrated coal at 75 mining? I heard it's decent experience and you can afk it.

not worth boosting to be able to mine it really.

the npcs there attack alot and its hard to be able to afk it. when i mine there you can be fighting sometimes half a minute before being free to be able to mine

 

if i was you i would get the level then go there

Get the level to actually mine it, then head there.

Till then, granite is A LOT faster.

Just get the level to mine Concentrated Coal.

 

Trust me, you wouldn't believe how frustrating it is to having to drink a Dwarven Stout when I was 59 Mining just to enter the guild.