Mithril ore goes for about 40-50g per stack on my server, i recently found a nice place to farm it! its about 5-10 min respawn on them, and the place is located in burning steps.
i estimate that there is around 20 veins within this area.
i got about 3 stacks in 15 min.
the veins are on the hills and in the caves, there is 2 caves to enter, each on opposite sides of eachother
This is what my carbonite addon shows me after 1 route!
i reseted it before, i did this route 5 min after i cleared the last one.
after a few more routes, this is what i get
Edit: Been farming for 30 min now, i got 230 mithril ore.