Everything depends on rock prices for each servers.
Necessary Things:
- Minning
- Unblock Flying on Broken Isles ( This option is almost needed to quickly farm all Felslate and Laystone ore. )
- Demonsteel Stirrups ( farming rocks on mount optional )
- Server Hop ( Every Switch on server get you new spot of deposit )
- Enchant Gloves - Legion Mining
Unnecessary
-Blacksmithing ( Demonsteel Stirrups and Leystone Hoofplates have 8 hour duration )
- Leystone Hoofplates ( Faster = Better = More Gold
)Start farm ore in this area ( in my opinion is the best spot to farm rocks )
But there are a few things more
- Hidden Wyrmtongue Cache
In 4 hour farming rocks i lot 68 mln Artifact Power on Knowledge level 34
56k of gold , 4k Nethershard and 45 Blood of Sargeras
So it's good spot to farm gold
Thanks guys and sorry for languge, good luck and tons of Gold ;D