An average moon, Khaggrak has a silicate core and surface.
Khaggrak, being class RBA, is a small terrestrial with a diameter of 0.65 times the earth. This gives it a mass of 0.27 times it, so it can pull itself into a sphere. This gives it sufficient space for Gorkhan colonization.
Mainly silicate, Khaggrak has a density of 5.4 g/cm^3. It also has a large amount of titanium and uranium ores. This allows for a profiting colony.