Silver
Silver is a chemical element with symbol Ag (from the Latin "", derived from the Proto-Indo-European "h₂erǵ": "shiny" or "white") and atomic number 47. A soft, white, lustrous transition metal, it exhibits the highest electrical conductivity, thermal conductivity, and reflectivity of any metal. The metal is found in the Earth's crust in the pure, free elemental form ("native silver"), as an alloy with gold and other metals, and in minerals such as argentite and chlorargyrite. Most silver is produced as a byproduct of copper, gold, lead, and zinc refining.
Aurora consurgens
"Aurora consurgens" is a commentary on the Latin translation of "Silvery Waters" by Senior Zadith (Ibn Umayl). It also refers to the "Song of Songs", especially in its last (7th) parable (de confabulatione dilecti cum dilecta), which draws closely on it, in main parts paraphrasing it. Unusual for a work of this type, the text is accompanied by about thirty-seven fine miniatures in watercolour. The illustrations are representations of alchemical symbols depicted in human or animal form. For example, mercury is depicted as a serpent, gold as the sun and silver as the moon. These illustrations incorporate some of the earliest Greek alchemical symbols known, found in the "Authentic Memoirs" of Zosimos of Panopolis.