Geode

Geode is an Earth subspecies, created by user Lisandre 

Lore
It is common knowledge that Snapper Dragons have no need for sleep and as such rarely stay still unless they are molting. What is not common knowledge is that this is exactly what Snapper Dragons want them to believe. 

There are those rare Snapper Dragons whose spiritual connection to the Earthshaker is so strong that when they reach their first molting as adults they find their spirits drawn to the Earthshaker, their bodies left behind become petrified and are soon covered from sight by dust, sand and soil.

Most of these dragons are still hidden under Dragonhome to this day, but every so often Earthshaker wakes some of these special children. He sends an Earth Sprite to summon a clan to the resting place of the dragon. Upon their arrival, the petrified body long buried under sediment explodes and a Geode Dragon emerges, as a caterpillar from its cocoon. (~MalakhGlitch)