Internet Colors - Set of 1035 Caput Mortuum Color 146 - #592720
In alchemy,
Caput Mortuum
(alternately called nigredo) signified a useless
substance left over from a chemical operation such as sublimation and the
epitome of decline and decay; alchemists represented this residue with a
stylized human skull, a literal death's head.
This was also used in 18th century chemistry to mean
residue, remainder, or residuum. Caput mortuum was also sometimes used to mean
crocus metallorum, i.e. brownish-red metallic compounds such as crocus martis
(ferrous sulphate), and crocus veneris (copper oxidule).
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Shown is some iron oxide | |
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