Crystal Release

The are techniques that manipulate crystal. Using Crystal Release, the user can induce a process which will crystallize anything around them--like bodies of water, moisture in the air, even bodily fluids--turning them into a weapon or solidify targets down to a cellular level, imprisoning and even killing a victim should the crystal ever be struck.

Users of Crystal Release can also manipulate already-existing Crystals and crystaline structures. Crystal used in Crystal Release are either Blue (i.e. Crystal Release: Jade Crystal Blade,) Green (i.e. Crystal Release: Jade Crystal Mirror for her Jade Crystal Clone Technique,) or most commonly pink (as seen by the bulk of Guren's techniques.)

When a Konoha recon team, consisting of Kakashi, Shino, Kiba, Akamaru and Hinata, first encountered the victims of Crystal Release, they pondered that such a type of jutsu, characterized by its ability to crystalizes its targets, might possibley be a earth-natured ability. The only apparent weakness of the Crystal Release is that it cannot crystallize raw chakra, allowing a person with enough chakra control to resist being inwardly crystallized. Furthermore, techniques of a Lightning, (because of the possible earth-nature,) and Fire type also appear to be rather effective in combat against the Crystal Release.

It's only known user is a woman called Guren. This element appears to regularly use a Ram hand seal.