|Blue crystalline species capable to copy a person and his memories
|Near extinction (in 1997)
|Out of Stargate universe information
The shape of the Unity is like a cobalt blue crystalline gem. They are able to mimic physical persons, even impersonate one at when they are at full potential. A direct touch on the species can blow away and even kill a human being, yet the Unity can physically heal them. They progressively loose power when they are far from their homeworld (SG1: "Cold Lazarus").
Long ago, the Goa'uld came on P3X-562. The Unity tried to greet them but when one of the Goa'uld was blown away by a Unity, the Goa'uld saw them as a threat, gathered them in one place and slaughter all of them with their staff weapons. Almost all of the Unity died (SG1: "Cold Lazarus").