Chrysosperm

Of your elixir, your lac Virginis, Your stone, your med'cine , and your chrysosperm

Source: wiktionary

How sir! When you have not tried my chrysosperm and marchesyte?

Source: wiktionary

This substance was the original principle of all matter, the alpha and omega, the general solvent, the universal menstruum, the mighty mastery, the great king, the fiery tincture, the helmeted hero, the bird of Hermes, the seal of Solomon, the powder of projection, the chrysosperm, the subject of the sages, the flower of the sun, the elemental soul, the perfect ruby, the red hyacinth, the fire of nature, the water of life, in a word, the philosopher's stone.

Source: wiktionary

For our most excellent celestial fixed water will open up the fiery volatile body and draw out a secret running white sulphur which the philosophers call chrysosperm ['gold seed'], that is, the soul of the metals.

Source: wiktionary