Add Yahoo as a preferred source to see more of our stories on Google. How can you determine whether or not a patina is rust, tarnish, or simply an age-induced finish? "Patina doesn't flake on metal ...

Let's face it: When it comes to antiques, differentiating between a patina and tarnish can be tricky. "Rust is one form of patina. It is the result of corroding steel after the iron particles have ...