Other potential uses of infernium:
1) Castle central heating. A small infernium stone, releasing its energy in a less explosive fashion, would be enough to heat even the draftiest castle thoughout the season of Fatal Frost. Outdoor swimming for everyone!
2) God style landscaping. Mountain range making your trade routes inaccessible? No problem. Leveling mountains, boring tunnels and carving new waterways has never been easier with infernium powered demolition tools.
3) Reach for the stars. What secrets lay undiscovered on the Ghost Cities of the moons? An infernium propulsion system could be the technology that heralds a new era in cosmic exploration. After successful tests with 'willing' faeries the first manned mission is now in the planning stages. Watch this space.
4) Weapons of mass annihilation. Disturbingly, it is believed that a group of extremist terror gnomes have amassed enough weapons grade infernium to create an explosive device of apocalyptic proportions. Their motives and demands currently remain a mystery. May the Boss God watch over us.