Oxidised Copper Patina — Aged Metal Abstract
11,434.07 ¥
Close-up section of naturally aged copper roofing material showing 50 years of progressive oxidation the verdigris patina in overlapping layers of turquoise, malachite green, and bronze brown at macro scale,
Description
Copper’s oxidation chemistry produces one of the most aesthetically rich patination sequences in the materials world — the initial bright copper surface progresses through dark brown cuprite to the characteristic blue-green malachite and azurite patina compounds that define aged copper architecture. This section of naturally weathered copper roofing, removed from a 50-year-old institutional building, shows all stages of the oxidation sequence simultaneously: the freshest exposed copper at the cut edges appears as warm orange-brown, transitioning through stages of increasing patination toward the deepest surface regions where 50 years of accumulated malachite appears as a thick, crystalline turquoise crust. Shot at 1.5:1 reproduction with raking sidelight at 10 degrees to the copper plane, the three-dimensional texture of the patina surface — its crystalline growths and surface erosion — is fully resolved.
