User blog comment:Kogath/Monster Hunter Frontier G5 Discussion/@comment-6050823-20140718133431/@comment-4009941-20140718183014

Though only going by pictures it doesn't look like Akura/Mi-Ru crystals because their crystals grow and explode when not connected to main body. In fact Akura's own shell is made out of the same liquid he makes crystals with it how he rebuilds his claws or horn mid fight.