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Nitrogen dioxide
A symbol used in 18th century chemistry to indicate nitrogen dioxide, or nitrogenous air.
Crucible (alchemy)
Resembling a lopsided martini glass, this symbol was used in alchemy to indicate a crucible or a melting pot.
Crucible (alternate #1)
Resembling a sealed envelope, this symbol was used in alchemy to indicate a crucible or a melting pot.
Magnesia\Magnesium (alternate #1)
A symbol used in early chemistry to represent magnesium.
Cement (alchemy)
A symbol from 17th century chemistry indicating cement or putty.
Natron (alchemy)
A symbol from 17th century chemistry used to indicate natron.
White lead (alchemy)
An early chemical symbol used to indicate white lead.
Mix (alchemy)
An alchemical symbol indicating the process of mixing.
Magnesia\Magnesium (alchemy)
Resembling a trident, this sign is a 16th century chemical symbol for magnesia.
Lime (alchemy)
A symbol used to represent lime in early chemistry.
Lime (alternate #1)
An early chemical symbol indicating lime or limestone.
Lime (alternate #2)
An early chemical symbol indicating lime or limestone.
Lime (alternate #4)
Somewhat resembling a kidney, this symbol was used in early chemistry to represent lime.
Steel (alternate #2)
An early chemical symbol for steel.
Steel (alternate #3)
Bearing a distinct resemblance to the anarchy logo, this is actually an early chemical symbol for the metal steel.
Tin (alternate #5)
An early chemical symbol indicating the metal tin.
Alcohol (alchemy)
An early chemical symbol used to indicate alcohol or a wine spirit.
Zinc (alchemy)
An 18th century chemical symbol representing the metal zinc.
Crystallization
In 18th century chemistry, this symbol represented the process of crystallization.
Tartar (alternate #3)
A symbol in early chemistry for tartaric acid salt.
Mix (alternate #1)
An alchemical symbol indicating the process of mixing.
Alcohol (alternate #1)
An early chemical symbol used to indicate alcohol.
Antimony (alternate #2)
Early chemical symbol for antimony.
Day of Tiburtius
A symbol from the clog almanacs used in Medieval Sweden.
Day of Tiburtius (alternate #1)
A symbol from the clog almanacs used in Medieval Sweden.

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