Traits

A mutation in which the crystals are not transparent, and instead are completely opaque.

A mutation in which the crystal color is not a solid color or a gradient of two different colors.

A crystal mutation where a small patch of crystals will grow on the crown of the head of an Arkaine, giving them a natural ‘crown’ look.

A mutation in which the crystals have a iridescent quality, where certain parts or all of the crystal will refract rainbow-like colors in the sun.

A mutation in which the crystals grow rapidly and plentiful. This condition is usually painful.

A crystal mutation where an Arkaine only has one horn.

A mutation in which the crystals have a vein-like look throughout them.

A mutation in which the Lifethorn is not the standard Arkaine shape. 

A mutation in which the Mindstone is not the standard Arkaine shape. 

A mutation in which the crystals have a rainbow-like effect, in which they have a multitude of colors (5 or more) in a gradient.

A mutation in which a specific item (within reason) has been incased within one or more of an Arkaine's crystals.
Crystal Casing usually happens in an Arkaine's horns, but also can happen in other larger-areas of crystal. 

These items are specific and unique to an Arkaine - meaning if a player chooses a 'dandelion' to be their Crystal Casing item, they will be the only Arkaine allowed to use that item in their crystal casing.
Crystal Casing interiors will always be unique to each Arkaine, meaning there will never be any duplicates.

Crystal Casing Taken-Item List:

• Dandelion
• Frosted Winter Rose
•  

Crystals constantly glow with a bioluminescent glow, usually the same color as the crystals or a lighter tone of the same color.

Bioluminescent crystals are exclusive to the Samora breed. 
The lifethorn pulse color is always a different color than a Samora's bioluminescent crystal glow. 

The Samora breed has always been known to have stunted, shorter horns than the other breeds of Arkaine, which are unable to grow past a medium length - or more than 5-6". It's suspected this happened over many years of evolution.