There is a mining quest called
"Where respect is due"
Requires you to Mine for leystone 35 times while using Ronos's Glass Pick.
If you fly to Thunder Totem Village and cross the bridges leading towards
/way 48.8 54.6
and kill the mobs called Enraged Ambershard. You can mine them and will get items for the mining quest each time. These mobs are pretty much instant respawn and you even have npcs there that help kill.
Nothing major but can make the quest go very quickly