User blog comment:JAlbor/Dawnguard: What Everyone Should Know/@comment-72.197.255.207-20120629055003/@comment-4118895-20120629171527

The crossbows requre wood and ignots. They're two varients. Dwarven and "regular". The crafting of the bolts require ignot and some sort of salt ( fire, ice, void ) if you want the special exploding bolts