Plutonium

Properties
Section	Radioactive
Spawn temperature	26°C
Heat Conductivity	100%
Relative weight	90
Gravity	0.4
Acid dissolve rate	0%
Flammability	0
State	Powder
Misc properties
Allows neutrons to pass through
Radioactive, harmful to STKM
Source code

Fissile. Becomes more unstable under pressure, on contact with lightning (THDR/LIGH), or with a high amount of neutrons. The reaction produces a uranium particle, a neutron and Molten Plutonium. Molten plutonium will remain at max temp for a few frames after the reaction. When cooled, the ctype changes to stone.

Fission:

Modeling real life, when a neutron hits a large amount of plutonium, it splits off in two. Every time a new neutron is formed, a flash of heat can be seen using heat color.