Fiction:Vorpalium

Appearance and Structure
Stellarite is a smooth transparent or opaque crystalline structure that turns black when it is charged with enough power. Stellarite is surprisingly light and carries almost no electric charge. It has the strange tendency to take on a key shape.

Traits
Stellarite is connected to Closed Space(and alternate, psychically reactive dirac sea that the for faster than light travel). It absorbs ionizing radiation from which it drives power allowing it to open a passage into Closed Space. Four types have been discovered so far and they are as fallows:

Accel Stellarite:The most common and they only one of which there are several sources known. It is none lethal and is used in Vanara Accel Drives and Gates to open a portal into Closed Space when charged with a stable, continuous radiation source is provided. Multiple veins of it exist through the Vanara Worldships and can be synthetically produced.

Ryu Stellarite:A form of Stellarite that is only found as the naturally generated armor of Vanara Sixer 's Ryu From. It only absorbs essence into Closed Space and then redirects the essence's opposite back into Real Space. There are limits to how much it can absorb.

Gate Keeper Stallarite:Only amount of this form exists is a small knife that posses. The knife draws a large portion of mass and energy from whatever it stabs into Closed Space without the need of radiation. Even the tiniest scratch(as long as it draws blood) will kill most lifeforms. Unknown to Niyra is charged with a high enough amount of radiation it will take on the form of giant key that can open up temporary portals into Closed Space to send enemies. It will revert back into a knife once the portal closes.