Quantrite

 is a cut crafting material. It was accidentally showcased in the Mineral Trade picture on Update 12's steam page, shortly after it was replaced with a new screenshot where the resource was removed. Traces of the resource can be found within older versions of the game files.

Although it's possible to spawn in a chunk in older builds, according to a developer it may have never had a proper in-game appearance or it eventually became Hollomite, whether this resource will return in any way is unknown. During the development of Deep Dives Quantrite makes an appearance as a placeholder icon for Matrix Cores.

Appearance
It appears to have been a thin, orange colored crystal with small yellow protrusions. Its chunk is a triangular orange glowing crystal.

Cuantrita