Geode Dragons are closely related to Stone dragons. They are covered in a hard stone-like material as well as beautiful crystal. Their wings are entirely useless for flight, but they help attract mates. The dragons with the most brilliant and colorful crystals are more likely to mate.

Dragons are highly-intelligent reptilian creatures that—from a human perspective, at least—appear to live forever. Many different varieties of dragon exist, each with their own unique qualities, habitats, and behavior. Adolescence in dragons is usually marked by the growth of a hatchling’s wings, although not all breeds of dragons grow wings and some breeds have other traits that indicate the beginning of maturation. In Galsreim, dragons and humans coexist peacefully.

Cotei is a gentle geode dragon who prefers to shy away from other dragons instead of fighting or playing with them. This is probably because when he was just a hatchling he regularly got in trouble due to the fact he was always accidentally hurting his friends. He didn't mean to hurt them, he just didn't know his own strength when he was playing. Miss Froy, the oldest of the white dragons, was tired of having to heal all of the injuries inflicted by Cotei, so she punished him. It was only a short time-out and a stern talking-to, but sensitive Cotei was deeply hurt. Cotei, forever afraid of the harm he might cause, goes out of his way to stay in his solitude.