Found primarily on mountain peaks, Aerogem deposits form as close to the sky as possible. The gem itself has little mass, and is thought to be composed of up to 90% air. Aerogems are physical gems that contain the energy of winged animals, often blending to result in drastic changes to the body such as hollow bones, wings, talons, and feathers. Flight is the key ability gained by Aerogem blends, followed by increased agility and a sensitivity to changes in weather.