Andreas Libavius (c. 1550-1616) is one of the most influential figures of Renaissance alchemy, active in the Elizabethan era. His book...

Cupriavidus metallidurans has an extraordinary ability to prosper in toxic environments. Not only does it survive, it turns toxic metals...

Mosaic gold is also known to alchemists as aurum musivum or aurum mosaicum due to its mottled formation. Forgotten in the data fields...

Chloroauric acid H[AuCl4] is a yellow solution created in the 18th century. A gold(III) salt, chloroauric acid is an innovative compound,...

Projection, according to experts of the Renaissance, is the final act of alchemical work once the Philosophers' Stone has been made. The...

The Book of Comarius is a mysterious tome dedicated to Cleopatra the Divine, or Cleopatra the Alchemist of Alexandria. In it, Comarius, a...

Displosis is the ancient practice of doubling gold. It's considered to be a skill of alchemists and early metal workers as well. If done...

Known as the first true alchemist, Mary or Maria the Jewess is active in Alexandria c. 100 AD. Her work survives through commentaries...

Testing metals is a precise and varied process in the ancient world. It's a crucial skill in ensuring fair trade and preventing fraud....

Bernard Trevisan is a prototypical figure in alchemy, constructed by various alchemical writers of the medieval and Renaissance eras in...

In Eastern and Western alchemy, the transformation of metals into gold (Au) symbolizes a process of maturation for metal and alchemist....

Alchemy symbolism is an ancient and fluctuating system of intertwined elements compounded over more than 2000 years. A cornerstone of...

Asem is a stock metal mix in alchemy , usually prepared in quantity ahead of time and added to alchemical recipes as needed. Asem is...

Want to write in letters of gold? These ten alchemy recipes are from the Leyden Papyrus c. 250 AD. None are recommended unless there's a...

Nāgārjuna (c. 150-250 AD) is considered one of the most important Buddhist philosophers in Indian history. Nāgārjuna's works have...

Cupellation is an ancient alchemy process used in metal separation. Alchemy comes from metallurgy and early medicine. The processes of...

"Lead is the ancestor of all metals. For gold is not a metal, gold is light. Lead requires only four periods of two hundred years each,...

Chrysopoeia is Greek for "goldsmithing." It's the alchemical process or action of turning a base metal such as lead into the noble metal...

Early prehistoric use of gold is for religious purposes, ornament or decor. In 1500 BCE, Thutmose of Egypt decrees gold to be used for...