Glossary · Conservation
Bronze disease
Active chloride corrosion of copper alloys: powdery pale-green spots that spread in humid air and pit the metal.
Active chloride corrosion of copper alloys: powdery pale-green spots that spread in humid air and pit the metal. It is treatable but not curable, and it is the thing to look for on an ancient coin or fibula before buying (see the technique).
Sources
Cite this article
Stratum Study. "Bronze disease" (Glossary). Stratum Study pack 2026.09, as of 2026-09-16. https://stratum.black/study/glossary/bronze-disease-term. Accessed 2026-09-21.
@misc{stratum-bronze-disease-term,
title = {Bronze disease},
author = {{Stratum Study}},
howpublished = {\url{https://stratum.black/study/glossary/bronze-disease-term}},
year = {2026},
note = {Glossary article, Stratum Study pack 2026.09, as of 2026-09-16; sources: stratum. Accessed 2026-09-21.}
} Citations carry the pack version and the article's as-of date so they resolve to the same text later. The facts themselves belong to the sources listed below; cite those for the science.