Editing Guide to the Supermatter (section)

=== Instability ===
The crystal must be kept stable if you don't want it to explode.

* Stability does not change by itself.
* The crystal grows unstable if the gas mix is hotter than 310K. It will instead stabilize when it is cooler than 310K.
* Physical bullets will destabilize the crystal, depending on the damage they do.
* Large amounts of power will destabilize the crystal.
* Large amounts of moles will not only destabilize the crystal but also prevent the stabilizing effect of cold gases.