Another difference is that Gold is worth a lot more than pyrite.
Sorry, I've been out in the mountains for so long I just had to make that s. a. comment. Several types of rock and crystals can look like gold but when you have the real thing next to the phony well, the gold really stands out.
I have found two small gold nuggets coated with and glued together by iron rust. I've never found gold bonded to pyrite especially to one of the cubical pyrite crystals. Due to the cubic crystal structure of pyrite many times a 10X (ten power) hand lens will identify the pyrite structure and crushing it will always confirm it is pyrite (it breaks up into tiny particles many being little cubes) while crushing gold will only cause it to squeeze a bit longer or to bend. This stretching of Gold is similar to our government buddy, that's the private Federal Reserve Bank, printing more money to stretch out the governments spending only the money they print is worth less and less making it worthless at some point. Gold is always valuable no matter how thin it is. {sorry, my bad, a political comment}
OhioChris, just keep working at it, compare notes, read up on the materials normally found in Ohio and just keep at it. Do you happen to have a nasty looking old gold ring? If so you might cut a hunk out of it. Take that hunk and pound on it A little Bit with the ball end of a hammer and then keep it as a color sample to compare to field samples.
Good Luck, 63bkpkr