Homebrew Gem Species Details

Alien rocks from another planet. The planet called home world. it's ruled over 3 powerful gems. Gems have the awesome power to fuse with other gems.  If a gem mate with another race, the gem must give up it's life for the child. The product of the mating is able to fuse with a gem and what the other parents race.  

Gem Traits

They have gems on any part of the body, forehead, hand, foot, eye, etc.