Newmatter

Newmatter is a generalized name given to artificial elements, which have been created by mixing neutrons, protons, and electrons in subtly different variations. This process gives the new metamaterial different physical and chemical characteristics, where they behave as if they have been taken from a different universe.

The Forerunners made extensive use of newmatter, using machines that gave them incredibly-precise control over its creation. After the Halo event, the Covenant would recover several of these and use them to create highly-efficient materials used in artificial gravity plating. Most of these were located on High Charity at the time that it fell, and were destroyed when the immense station crashed into the Ark.