How do You Determine Red Brass from Copper ?

Looking for direct ways and pointers in determining the best ways to distinguish and separate red brass from copper. Have searched both here and Google and made no real progress or found any definitive answers to this question. Is it simply the reddish tint? Is red brass found mostly in ornamental items? (actually I recall one search result advertising red brass pipe) Sometimes there's just nothing better than good ol experience, hoping some of you fine folks will help explain this a little better.