just a thought, It just seem to me that a quarter and a beer, soda can reads the same most of the time.

[Kevin_Fayette_Pa.]

n/t

 

[BarberDan]

Easy fix....lift your coil about 8" off the ground if you still get a signal then it's a beer can.....if not...it's most likely a coin.

 

[Beyonder]

its all conductivity. U can have a piece of copper that will read like a quarter if its the right size. This is where detecting experience and skill come in. make the mistakes, they are better than clad trust me

 

[Rolladex]

If you pinpoint in sizing you can tell the difference too.

 

[Jason in Enid]

As was already mentioned, it's all about conductivity. A tiny piece of that beer can will read as foil. A larger peice will read as nickle. Large enough peice will read as a quarter or even a half dollar.