Congelation
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Template:Sister project Congelation (from Latin: Script error: No such module "Lang"., Template:Lit) was a term used in medieval and early modern alchemy for the process known today as crystallization.[1]
In the Script error: No such module "Lang". ('The Secret of Alchemy') attributed to Khalid ibn Yazid (Template:Circa), it is one of "the four principal operations", along with Solution, Albification ('whitening'), and Rubification ('reddening').[2]
It was one of the twelve alchemical operations involved in the creation of the philosophers' stone as described by Sir George Ripley (Template:Circa) in his Compound of Alchymy,[3] as well as by Antoine-Joseph Pernety in his Dictionnaire mytho-hermétique (1758).[4]
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