As you know at some points mining gets kinda annoying tryin to get your level high enough to mine the good stuff. Theres a pretty easy way to get some fast mining xp. Theres a cave in NE arathi highlands filled with kobolds and such. Also there is a quest from booty bay which involves mining lesser bloodstone ores from the mines. These things require 100 mining skill but they actually give you xp for mining them!. There is about 4-5 lesser bloodstone deposits in the cave and they respawn every 10 minutes i believe. I went in there at about 150 mining skill and mined till my skill was 175 so i could start getting mithril which sells for a great amount. Its probably possible to go even higher in mining from the lesser bloodstone ores. Then after i had all that bloodstone ore i went back to booty bay and sold the ore to lazy people(or people who couldnt mine)for 30-50s each. Great way to make some cash and level up your mining without having to run around lookin for mines