![cover image](https://wikiwandv2-19431.kxcdn.com/_next/image?url=https://upload.wikimedia.org/wikipedia/commons/thumb/2/2c/Statue-of-liberty_tysto.jpg/640px-Statue-of-liberty_tysto.jpg&w=640&q=50)
Patina
acquired change of an object's surface through age and exposure / From Wikipedia, the free encyclopedia
A patina is a coating of various chemical compounds such as oxides or carbonates formed on the surface of metal or other material. Often this is due to exposure to weather. The word "patina" comes from the Latin word meaning "shallow dish".[1] For many works of art the patina adds to its value.[2] In many cases, the artist wanted the work to acquire a patina over time.[2]
![Thumb image](http://upload.wikimedia.org/wikipedia/commons/thumb/2/2c/Statue-of-liberty_tysto.jpg/320px-Statue-of-liberty_tysto.jpg)
Statue of Liberty with its famous blue-green patina