VERDIGRIS

Verdigris

Verdigris is the common name for a green pigment obtained through the application of acetic acid to copper plates or the natural patina formed when copper, brass or bronze is weathered and exposed to air or seawater over a period of time. It is usually a basic copper carbonate, but near the sea will be a basic copper chloride. If acetic acid is present at the time of weathering, it may consist of copper acetate.

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verdigris

Noun

  1. A blue-green patina that forms on copper-containing metals.
  2. Copper acetate.
  3. The colour of this patina or material.

Verb

  1. To cover, or coat, with verdigris.
    An old verdigrised brass bugle. — Hawthorne.


The above text is a snippet from Wiktionary: verdigris
and as such is available under the Creative Commons Attribution/Share-Alike License.

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