Do You Know Copper By Sight?

I usually can but I often am tricked by dull looking zincs.

I can tell most of the time. usually I go by "color" and the higher relief. But sometimes I get tricked by very dirty zincs or very shiny/lustrous copper cents.

I agree, the relief is a major tell for me.

I definitely guess right more often than wrong.

Zincolns are copper plated so I can't really tell by looking but I am almost always right by doing the drop test
John1

I'm colour blind but I can smell the difference.

I'm probably 90% accurate, but some of the Zincolns are tricky ..

Im not very good at the color, but I can smell it.

I can usually tell by the relief but I wouldn't feel comfortable decisively sorting by relief or color. I'd be right about 90% of the time.

Is it possible to tell the difference between copper and copper coated by color alone? I'm guessing people are using the coins relief more than they realize.

My hearing isn't the greatest. I can hear silver but not copper. I can also hear the TV but not my wife.