So... There are some things that are different, especially with gem picking.
Pyromaniacs can be a variety of gems, usually picked on favourite gem more than suitable gem, such example is Auurin, who's Pyrite instead of Pyrope (A kind of Garnet, which is the group she suits). Gems with "fire" or such to do with fire are typically gems pyromaniacs use, such as Forest Fire Jasper, Blue Fire Opal, Sunstone, Celestine and of course, Firestone.
Dacnomaniacs are typically found with Bloodstones, Red Obsidian, Various types of red quartzes and Fossil gems, considering their softspot for murder.
Hydromaniacs are typically found with gems for an opposite reason to Pyromaniacs. They carry Lapis Lazuli, Crysocolla, Larimar, Iolite, Moonstone, Nacre and Moss Agate.
I'll edit this with even more manic conditions later.