Congelation (from
Latin: , ) was a term used in medieval and early modern
alchemy for the process known today as
crystallization
Crystallization is the process by which solid forms, where the atoms or molecules are highly organized into a structure known as a crystal. Some ways by which crystals form are precipitating from a solution, freezing, or more rarely deposi ...
.
In the ('The Secret of Alchemy') attributed to
Khalid ibn Yazid (), it is one of "the four principal operations", along with ''Solution'',
''Albification'' ('whitening'), and
''Rubification'' ('reddening').
It was one of the twelve alchemical operations involved in the creation of the
philosophers' stone as described by
Sir George Ripley () in his ''Compound of Alchymy'', as well as by
Antoine-Joseph Pernety in his ''Dictionnaire mytho-hermétique'' (1758).
[.]
See also
*
Alchemical process
*
Magnum opus (alchemy)
References
Works cited
*
*
Alchemical processes
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