Page 217 - Copper and Bronze in Art: Corrosion, Colorants, Getty Museum Conservation, By David Scott

4 8
P L A T E 4 8 Doors to the Dalziel family vaults, Highgate
Cemetery, London. Bronze, : approx. 3 m. The doors,
H
which show rust-corrosion stains from ill-chosen iron
locks, are in close proximity to plant growth, which sug­
gests that fertilizer may have influenced the formation of
the basic copper nitrate salt, gerhardtite, found in the cor­
rosion crust.

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