found this in my pan today, and ideas what it is?

[hungry hunter]

This is my first post here, but I have been checking out the threads here since I have just started panning as a hobby to do with my son. I have been practicing with some paydirt I bought online and came across this today. The paydirt is from Georgia.
Any ideas what it is? I'm sorry the pics aren't the best. Thanks everyone.

 

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[Sick4gold]

Possibly pyrite if its brittle, smack it with a hammer. If it shatters then pyrite

 

[hungry hunter]

Thanks.
It was way down deep in the black sands too, just like the gold.

 

[Jason in Enid]

Looks like the bits of pyrite I find here in OK. It's mostly iron so it should be down in the heavies. Push on it with your fingernail, it will probably shatter.