The Emerald Tablet, also known as the Smaragdine Table, or Tabula Smaragdina, is a compact and cryptic piece of the Hermetica reputed to contain the secret of the prima materia and its transmutation.
This could be another link to the green stone in the Head Room.
It was highly regarded by European alchemists as the foundation of their art and its Hermetic tradition. The original source of the Emerald Tablet is unknown. Although Hermes Trismegistus is the author named in the text, its first known appearance is in a book written in Arabic between the sixth and eighth centuries. The text was first translated into Latin in the twelfth century. Numerous translations, interpretations and commentaries followed.
The layers of meaning in the Emerald Tablet have been associated with the creation of the philosopher’s stone, laboratory experimentation, phase transition, the alchemical magnum opus, the ancient, classical, element system, and the correspondence between macrocosm and microcosm.
A translation by Isaac Newton is found among his alchemical papers that are currently housed in King’s College Library, Cambridge University.
Tis true without lying, certain & most true. That which is below is like that which is above & that which is above is like that which is below to do the miracles of one only thing And as all things have been & arose from one by the mediation of one: so all things have their birth from this one thing by adaptation. The Sun is its father, the moon its mother, the wind hath carried it in its belly, the earth is its nourse. The father of all perfection in the whole world is here. Its force or power is entire if it be converted into earth. Separate thou the earth from the fire, the subtile from the gross sweetly with great industry. It ascends from the earth to the heaven & again it descends to the earth & receives the force of things superior & inferior. By this means you shall have the glory of the whole world & thereby all obscurity shall fly from you. Its force is above all force. For it vanquishes every subtle thing & penetrates every solid thing. So was the world created. From this are & do come admirable adaptations whereof the means (or process) is here in this. Hence I am called Hermes Trismegist, having the three parts of the philosophy of the whole world That which I have said of the operation of the Sun is accomplished & ended.