CHRYSOCOLLON.
There was a cement for fixing the precious metals, which cement was known as “Chrysocollon,” and was made with much ceremony from the urine “of an innocent boy.” There are various descriptions, but the following, while brief, contain all the material points.
Galen describes this Chrysocollon, or Gold-Glue, as prepared by some physicians from the urine of a boy, who had to void it into a mortar of red copper while a pestle of the same material was in motion, which urine carefully exposed to the sun until it had acquired the thickness of honey, was considered capable of soldering gold and of curing obstinate diseases: “Attamen medicamentum quod ex urina pueri conficetur quod quidam vocant chrysocollon, quia eo ad auri glutinationem utuntur, ad ulcera difficilia sanatu optimum esse assero fit autem id figura phiali confecto mortario ex ære rubro habentem pistillum ejusdem materiæ in quod mejente puero pistillum circumages, identidem, ut non tantum a mortario deradedet, etc.” (“Opera Omnia,” Kuhn’s edition, vol. xii. pp. 286, 287.)
Dioscorides describes the manufacture thus: “Quinetiam ex ea (i. e. ‘pueri innocentis urina’) et ære cyprio idoneum ferruminando glutea paratur.”—(“Materia Medica,” Kuhn’s edition, vol. i. p. 227 et seq.)
If a boy’s urine be rubbed up in a copper mortar with a copper pestle, it makes a sort of mucilage which can be used to fasten articles of gold together, as Sextus Placitus tells us: “Si pueri lotium cuprino mortario et cuprino pistello contritum fuerit, aurum solidat.”—(“De Medicamentis ex Animalibus,” edition of Lyons, 1537, pages not numbered, article, “De Puello et Puella Virgine.”)
The definition given by Avicenna, the Arabian authority, is: “Quæ fit ex urina infantium mota in mortario æro cum aceto in sole.”—(Vol. i. p. 336, a 34 et seq.)
We also read of an “Alchymical Water,” called “Diana,” for transmuting metals into gold and silver; it was believed that this preparation was efficacious “ad mutandum Mercurium in Solem vel Lunam.” (“Sol” was gold, “Luna” was silver; see notes from Paracelsus below.) This “Diana” was employed in the preparation of “Crocus Martis,” as well as in that of “Oleum Martis,” for giving metals the color of gold, for polishing gold plate, for giving a fine temper to the best iron or steel implements, and for making the “Chrysocolla” just described.—(“Medicus Microcosmus,” Beckherius, pp. 103-108.)
Paracelsus, speaking of the metals says: “Sol, that is Gold; Luna, that is silver; Venus, that is Copper; Mercury, that is Quicksilver; Saturnus, that is Lead; Jupiter, that is Tinne; Mars, that is Iron.”—(“The Secrets of Physicke,” English translation, London, 1633, p. 117.)