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white as snow and very heavy.
This precious sublimed matter contains beneath its whiteness a sulfur red as blood, which is the living gold—and not dead—that the philosophers use to animate their common gold.
Take the sublimate or white flowers, which are very volatile, and fix or freeze them over a regulated gentle fire until the matter no longer sublimates and is of a beautiful purple-red color, which the philosophers call "making the work manifest." To perform this fixation or freezing, one uses a very round matrass. Put this sublimate or white flowers, or this volatile salt that one wishes to fix and "rubify" To turn red., inside; one should only occupy the sixth part of the matrass. Seal it hermetically and place it on its side in the sand at a gentle fire. When it has risen or sublimated, turn the matrass upside down, and repeat this as long as matter sublimates and until it has become fine, subtle, and of a vivid red; then it is prepared. Alternatively, one takes two shallow cucurbits that serve the same purpose as the matrass by turning them each time the salt rises, until it remains in the state that we have just described.
This operation should serve as an example for fixing and rubifying all volatile salts, which are the final envelope of the seminal spirit of the mixture from which they are drawn and which, beneath their whiteness, contain the vivid and prolific red sulfur.