morgan silver dollars

I have lately been buying Morgan Silver Dollars on eBay. The ones I like are the ones that have been circulated and have some black tarnish that causes the high areas to really stand out. Here is how I do it. My eBay filters: I look for Morgan Dollars selling for under $15.00 and are...

Can anyone tell me if this Morgan dollar is fake? It's in my Grandpa's collection. It looks like it's fake to me, but I am not sure. The overall look of it seems off. Kinda like it's plated or something. The weight is just about spot on to a confirmed real one. I particularly think it looks fake...