Projection (alchemy)

Typically, the process is described as casting a small portion of the Stone into a molten base metal.

The following is a typical account of the projection process described by Jan Baptista van Helmont in his De Natura Vitae Eternae.

I made projection with this fourth part of a grain wrapped in paper upon eight ounces of quicksilver heated in a crucible.

The result of the projection was eight ounces, lacking eleven grains, of the most pure gold.Other reports include: While it may not account for all claims of metallic transmutation, some alchemists of this time period give accounts of fraudulent projection demonstrations, distinguishing themselves from the projectors.

Maier's Examen Fucorum Pseudo-chymicorum and Khunrath's Treuhertzige Warnungs-Vermahnung list tricks used by pseudo-alchemists.