Diana’s tree is a dendritic amalgam of crystallized silver, obtained from mercury in a solution of silver nitrate; so-called by the alchemists, among whom "Diana" stood for silver.
The quickest method to generate this tree takes about a quarter of an hour. The form of this metallic tree may be varied as desired. The stronger the user makes his elements, the thicker the tree will be with branches, and sooner formed.
A scientist also described how numerous other kinds of trees may be produced by crystallization and "digestion”.
There is also Saturn's Tree, which was a deposit of crystallized lead, massed together in the form of a "tree". It is produced by a shaving of zinc in a solution of the lead(II) acetate. In alchemy, "Saturn" was the name used for lead.