chrysosperm

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

1857, Thomas (of Swarraton, armiger, pseud.), The Noble Traytour, page 232

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.

1893, “The Black Art”, in The Pall Mall Magazine, volume 1, page 54

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.

2007, Patrick Harpur, Mercurius, Or, the Marriage of Heaven & Earth, page 165

Of dusky light escaped the journeying clouds That hid the ample sun and left his beams A deeper hue of topaz, chrysosperm To milt the earth with harvest;

1904, John Davidson, Testaments: The testament of a prime minister, page 50