Gold

Properties
Section	Solids
Spawn temperature	22°C
Heat Conductivity	100%
Relative weight	100
Gravity	0
Acid dissolve rate	0%
Flammability	0
State	Solid
Transitions
High temperature	above 1063.85°C
Misc properties
Conducts electricity (SPRK)
Allows neutrons to pass through
Source code

Gold is a solid, unbreakable metal with a melting point of 1064°c, it has anti-corrosion properties, when placed next to IRON, it will prevent it from rusting (useful when performing electrolysis)

It also has some interesting electrical properties, it has a conduction speed of about 50% more than other materials (with only ETRD and INST being faster) and being able to conduct across up to a 3 pixel gap

Gold will allow neutrons to pass through, but will absorb about half of them.