Book: Heavy Weapons.
...there must be a way to imbue it with Light. That is Ikora's theory. How glad I would be of her help, but her eyes are occupied with other trials.
Perhaps if I folded another substance into the blade—one that is forged in Light—it might imprint upon the malleable Hadium, share its attributes. But what substance? Ghosts are out of the question. Spinmetal is in the blade already, but its Arc was too diffuse to move the Hadium. Is there a way to refine Spinmetal, distil it to its core elements?
I have little gift for the science of this, but my resolve will not be thwarted. Maybe the Cryptarchs can advise.