Runic magic is the combination of a symbolic script & geometric patterns to affect the flow & properties of magic. It fixes & stabilises magic & makes it flow more efficiently. It is used to make wards or craft magical artefacts but is hard & dangerous.
Forging magic is the combination of chemistry, alchemy, enchantment, and it aims to imbue deeply a material with magic to make this magic stronger and more resistant. The material is then ready to be either used directly or worked on by other Masters.