User blog comment:FairyRaven/Fairy Tail Chapter 363: The Stories That Demons Read, Review and Commentary/@comment-1153699-20131207173113/@comment-7418318-20131212173146

Zirconis isn't really a Jade Dragon. He only took that up as a nickname because he liked it when Hisui called him that, due to his colour. We have no idea what actual element Zirconis really has.