The Beyond is a world of magic and the impossible. Under specific conditions, both heat and cold can be condensed into liquids. Enchanters can even create metals from super-concentrated forms of these liquids.
By applying additional heat to liquid heat (via a fire or burner), enchanters can create a super-concentrated form of it. (This process can take more or less time, depending on the heating source used.) Super-concentrated liquid heat is highly energetic, swirling furiously in its container and giving off light that is painful to look at. This state typically lasts for but a short time before the liquid heat burns through its container and explodes.
Enchanters can also create super-concentrated liquid cold, by slowly leaching away residual heat in the flask and the environment, lowering the temperature of the fluid’s surroundings. (An unpleasant process, as it requires them turning their workshop into an ice-box.) The absence of ambient heat allows the liquid cold to begin drawing cold energies to itself, concentrating them greatly.
At low enough temperatures, just above the crystallization point (which forms perfect ice), the liquid cold becomes super-concentrated. In this state it is quite thick, almost gelatinous, and the white strips become translucent. This is an unstable state, as the liquid cold is on the very verge of crystallization (which usually happens within a second or two).
While in their super-concentrated state, both fluids can be used to make metals with strange physical properties. A tiny mote of gold, introduced into the super-concentrated liquid heat, causes an instant reaction (much like dropping a salt crystal into a super-saturated water solution). Within moments, a lump of crystallized golden metal — firegold — precipitates out of the liquid heat, collecting on the bottom of the flask. (The liquid heat completely vanishes, being replaced with an equal volume of plasm, a watery substance made of spent magical energies. The plasm vanishes within a minute or two.)
A tiny mote of silver causes a similar reaction in the super-concentrated liquid cold. The liquid cold immediately desiccates, forming two powdery substances, thoroughly mixed together: plasm salt and frostsilver. Applying a small amount of heat causes the plasm salt to vanish, and applying even more heat melts the frostsilver.
Firegold and frostsilver are metals, nearly identical to their namesakes, save for an unusual coloration — red swirls for firegold and white bands for frostsilver. There is no known way of changing the metals back into heat or cold; once metallicized, they are simply metals.
As metals, they can be used to make jewelry or for any other use gold or silver could be put to. The two metals are infused with magic, however, and being magical, they have further applications beyond the mundane.
Technomancers use the metals to construct power taps, for use in powering devisements. A piece of firegold and frostsilver that are linked with appropriate wires generate a small amount of electrical current when placed against the skin of a person. This current is enough to sustain a small devisement indefinitely, without harming the individual in question. Technomancers use power taps in permanent devisements, obviating the need for another power source.
Devisements are in high demand, and so the procedure for creating and using firegold and frostsilver has become common among technomages, even though creating them is a tricky, involved, and hazardous process. Only the most skilled of enchanters or technomages can attempt it successfully, and none do so casually.
There are no shortcuts when creating firegold and frostsilver. Technomages have to use the same techniques, the same equipment, the same Talent as enchanters.
Technomagic is enchanting, in a different form. The same holds true for the other new forms of magic that arose on Earth. Each derive from an ancient Beyonder tradition that stretches back more than 10,000 years.