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A circle with a cross above it, the inversion of the sign for Venus.
Also known as: Antimony sign
A circle surmounted by a cross — the Venus sign turned upside down. Antimony and its compounds were among the most intensively studied substances in early modern chemistry, and the sign appears constantly in laboratory notebooks.
Denotes antimony, or in many texts its principal ore stibnite, which practitioners did not always distinguish from the metal.
Encoded at U+1F71C ALCHEMICAL SYMBOL FOR ANTIMONY.
Contexts: Software
A major subject of seventeenth-century chemical investigation, and the substance behind the 'star regulus' whose crystalline surface was read by some practitioners as evidence of a hidden principle.
A circle with a small equal-armed cross standing directly on top of it.
The antimony sign is the Venus sign inverted — circle above cross becomes cross above circle.