difference between patina and rust
Patina is a thin layer of tarnish or corrosion that forms on the surface of a metal object over time due to exposure to the elements. It is typically green or brown in color and forms on copper, bronze, and other metals. Patina is often considered desirable because it can give metal objects a unique, antique appearance.
Rust, on the other hand, is a type of corrosion that specifically affects iron and steel. It is characterized by the formation of reddish-brown flakes on the surface of the metal. Rust is caused by the reaction of iron with water and oxygen, and it can weaken the structure of the metal and cause it to become brittle over time.
In summary, patina is a general term for a layer of tarnish or corrosion on a metal surface, while rust specifically refers to the corrosion of iron and steel.
