Residuum

Residuum is the residue of arcane energy, manifesting as a green dust obtained from Whitestone that is useful in several magical applications.

Mechanics & Inner Workings

Although not inherently magical, residuum is particularly receptive to arcane energies and therefore may be used to create objects that retain more powerful enchantments, perhaps for longer periods of time. It can also be utilized to replace and act as other expensive materials and components for spells and other uses. Finally, it is one of two substances that can be refined into the drug suude, which can enhance spellcasting.
Raw residuum can be purified by heating into a dark green glass-like state; in this form it is referred to refined residuum and displays stronger magical properties. A table topped with an enchanting slate made of residuum can greatly speed the production of all magic items; these slates are sold for at least 20,000 gp.

Manufacturing process

During The Calamity, a tremendously violent battle between Pelor and Tharizdun created the valley in which the Parchwood Timberlands stand, raised the Alabaster Sierras, and infused the area with a huge amount of residuum.
As a result, Whitestone is the primary source of residuum, and exports it in small quantities. Residuum has also accumulated on the bed of Mooren Lake, downstream from the Alabaster Sierras and Parchwood Timberland, in such quantities that it has begun to gain sentience.

Item type

Power Storage / Generator