One of several alchemical symbols for realgar.
Realgar is a a ruby-red paste compounded of sulphur and arsenic. It is used in the production of glass, small shot, signal lights, grounding paint for ships' hulls, etc. It was a substance that alchemists worked with continuously during the Middle Ages.
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Category: Alchemical Symbols.
More symbols in Alchemical Symbols:
Alchemical symbols, originally devised as part of alchemy, were used to denote some elements and some compounds until the 18th century. Note that while notation like this was mostly standardized, sty… read more »