Entity: VERDIGRIS
Verdigris is a green or greenish-blue substance that forms on copper, brass, or bronze surfaces exposed to the atmosphere for a long time.
VERDIGRIS
Etymology
The term "verdigris" originates from the Middle English word 'verdigrese', which comes from the Old French 'verdegrez', meaning 'green of Greece'.
Definition
Verdigris refers to a green or greenish-blue patina that forms on copper, brass, or bronze surfaces exposed to the atmosphere for an extended period. It consists mainly of basic copper acetates or sulfates resulting from the oxidation of these metals.
Historical Context
Verdigris has been used since ancient times as a pigment in paintings, as well as for various decorative purposes due to its distinctive color and appearance.
Cultural Significance
Many historical buildings, churches, and artworks feature verdigris, symbolizing age, weathering, and a connection to the past.
Related Concepts
Verdigris is related to patina, corrosion, and oxidation processes that occur on metal surfaces over time.
See Also
- Patina
- Copper oxidation
- Bronze corrosion
A patina of green or bluish color that develops on copper, brass, or bronze due to oxidation over time.