|Petropia Back-up crystal|
|Type||Backup Drive for Petropia and its people|
|First Appearance||Ben 10: Secret of The Omnitrix|
The Petropia Back-up crystal is a sacred artifact for the people of Petropia and it is well known for its nearly limitless power.
At first it was thought that it was simply an energy source. It was later discovered to be a genetic back-up of every Petrosapien, along with Petropia itself. The Guardian of Petropia used its immense power to restore Petropia and her people.
Since the beginning of time the DNA of the Petrosapien people and their memories and all who lived there has been stored in this crystal. It can only be used properly when a rare alignment occurs and by a Crystalsapien or Petrosapien who is attuned to the crystal.
It was stolen by Tetrax and was given to Vilgax, who used it to destroy Petropia when they wouldn't surrender to him. But at the time neither Tetrax nor Vilgax knew about the true purpose of the crystal.
Prior to The Secret of Chromastone, Tetrax learned, while exploring the ruins of Petropia, what the true nature of the crystal was. He then stole it back from Vilgax and gave it to Sugilite. It was used to restore Petropia and her people by Chromastone and Ben (as Diamondhead), respectively. It was returned to its home and given to its guardian Sugilite when he was revived, where it will be protected.
- It is known to be their most sacred crystal.