there's the secret cave at the crystal mines. In there lump of crystals spawn. Each lump drops like 3-10 small crystals worth 44 tree of savior silver each. I'm second circle with Priest, lv 48 ... And all the mobs in this map kill me instantly, till arrive at a farm spot u might need to self res a few times, afterwards u can just kite the monsters whil farming, or drag them away.