Antimatter

For the antimatter equivalent for Schrabidium, see Antischrabidium.

Antimatter is a blanket term for matter that is composed of "antiparticles" as opposed to ordinary particles. Antimatter particles have the opposite electrical charge compared to their "normal" counterparts. A positron is an electron with a positive charge, an antiproton is a proton with a negative charge, and an antineutron is a neutron with the opposite Baryon Number (the one exception). When antimatter comes into contact with normal matter, it explodes, annihilating both the antimatter and an equal part normal matter into pure energy. This concept is known as Mutual Annihilation.

In NTM, Antimatter is a pure black fluid, primarily held in cells. When the cell is dropped as an item, it will explode. Though technically, large amounts of antimatter would have to be contained within magnetic containment, this only counts for the barrels. What material antimatter is cannot be known, in real life, even antimatter equivalents of very light elements like hydrogen and helium are extremely expensive to make, nevermind heavier ones, most antimatter is in the form of subatomic particles. Large quantities of antimatter must either be held in large magnetic tanks or small magnetic antimatter containment barrels

Production
Antimatter is produced in the Cyclotron as a byproduct. Heavier element boxes usually produce more antimatter. This means that you cannot produce antimatter outright in the cyclotron and you are forced to use it in some way in order to obtain large amounts of it.

The easiest way is to create a Particle Accelerator and smash Hydrogen Ions into Copper Ions. However, the Particle Accelerator is very expensive to construct and operate.

You can sometimes find cells of it in Spaceships.

Uses
Antimatter has various specialized uses in antimatter weapons and other items.

Antimatter bombarded with particles from Plutonium in a Cyclotron will turn it into Antischrabidium.

Antimatter smashed with more Antimatter in a Particle Accelerator also makes Antischrabidium (the former is more efficient).

Flashgold production.

It is used as a fuel for the Fusionary Watz Plant.

It can be made into a dense antimatter cluster and tossed into singularities to destroy them.

It can be used in the Custom Nuke. It contributes 5 to its antimatter stage.

Trivia

 * Considering that when bombarded with Plutonium in a Cyclotron, it turns into Antischrabidium, it may be noted as the antimatter equivalent to some kind of heavy element, however, this makes little sense. Though, not much is known about antimatter at all, so we cannot come to any real conclusions.
 * Although not directly stated, it is said to be antihydrogen in the tooltip for Flashgold RBMK fuel.
 * Antimatter actually behaves the exact same was as normal matter does. It is attracted by matter and gravity, it reflects light the same way, it reacts the same. Most people believe it is the completely opposite.
 * The reason why antimatter is black is probably just because aesthetics.
 * An easy but risky way to get antimatter is to kill wither skeletons with an axe that has the decapitator ability, this feature was probably added to stop people from easily farming wither skulls. To get the antimatter from the wither skeleton, kill the wither skeleton on a bunch of hoppers.
 * This old method was fixed since it was very easily exploited.