Ceramic

Properties
Section	Solids
Spawn temperature	22°C
Heat Conductivity	14%
Relative weight	100
Gravity	0
Acid dissolve rate	0.5%
Flammability	0
State	Solid
Transitions
High temperature	above 2614°C
Low pressure	below -30 pressure
Misc properties
Allows neutrons to pass through
Source code

CRMC is a material that has its melting point determined by how much pressure it is under. At 0 pressure its melting point is at 2614 degrees Celsius. For every unit of pressure increase afterwards, the melting point increases by 10 degrees Celsius. The maximum melting point at 255 pressure is 5164 degrees Celsius.

The pressure is averaged by taking the pressure at 5 locations. It checks its current location, plus two pixels in each direction. Note that air is on a 4x4 grid, so it will be taking the pressure at 3 actual pressure grid locations.

At pressures below -30 CRMC breaks into CLST. This isn't done using a normal transition for some reason, so it can't be easily modified via Lua at the moment.