Originally Posted by
Velisra
Keep in mind that there are two sorts of chests in these dungeons:
There will be small chests scattered throughout the dungeon, and these are the ones that have regular loot items, things like the 25 water shards and 5 aldgoat skins mentioned above. [...] The other chests are bigger, and only show up after your party defeats bosses in the dungeon. These chests will cause the pop-up window to show up, or the button that can be clicked and then shows the window, so that you can roll on the items--typically gear, but in later dungeons there may be special items like minions as well.