Salt is important from ancient to Renaissance alchemy, and still used today in alchemical projects, dyeing, cuisine and medicine. In...

Salt in alchemy is an independent mineral as well as one of the tria prima , or Three Primes, a medieval concept dominating Renaissance...

Neolithic salt production in Europe centers around sites such as Solnitsata in today's Bulgaria, and Lunca (Poiana Slatinei), Romania....

Alum is an ingredient in processes such as dyeing fabric, tanning hides and water purification. Alum is ubiquitous in ancient and...