The difference between oxidized or antiqued copper and raw copper

Oxidized copper and raw copper differ mainly in appearance, surface chemistry, and durability:

🔶 Raw Copper

Appearance: Bright, shiny, reddish-orange metallic surface.

Texture: Smooth and reflective when freshly polished.

Reactivity: Easily tarnishes when exposed to air, moisture, or oils from skin.

Maintenance: Needs regular cleaning and polishing to keep its original shine.

🔷 Oxidized Copper

Appearance: Darkened surface—often brown, deep red, black, or even green (verdigris), depending on the stage of oxidation.

Texture: Matte, rustic, sometimes uneven tones that bring out details in designs (popular in jewelry and art).

Reactivity: The oxidation layer forms a protective barrier, slowing further tarnishing.

Maintenance: Requires less upkeep; artists sometimes intentionally oxidize copper for a permanent antique or earthy look.

👉 In short: Raw copper is bright and shiny but high-maintenance, while oxidized copper has a darker, aged character with lower upkeep.