Pandemonic Silver

In many eons past-

Pandemonic Silver was scattered throughout the planes. Shreiking through the void, splintered shards of chaos followed the expulsion of matter out of the abyss. Like the Mandelbrot image, patterns of order developed out of random chaos. The chaos congealed into mirrored forms—Pandemonic Silver—in tiny pockets throughout the multiverse. On the Prime Material Plane, this became the basis of Alchemy. Pandemonic Silver, the essence of planar connection, the thread which connects all the planes to their origin.

Pandemonic Silver

Mystara: Verbonum jamie