I marvelled exactly how patination is both art and chemistry; regulated oxidation, acids

https://storage.googleapis.com/metal-craftsmanship/serving-home-owners/uncategorized/a-century-on-the-ridge-personalized-copper-cupolas-by-salvo-metal-works.html

I marvelled how patination is both art and chemistry; controlled oxidation, acids, and waxes produce living finishes that evolve with weather yet continue to be protectively secured.