Reconstruction

The opposite of Decomposition.

It allowed the caster to assemble materials into larger matrices, to recreate the rock from the ores, as it were. The two were core spells in potion creation. Base materials were decomposed into their constituent elements, and the desired materials selected from those and then reconstructed into the potion. More effective or complex potions would require additional spells or rune formations, however, but they all functioned on the same basic principle.

A 1 Ring Rune Magus Spell.