Need help identifying

[Von12]

Found this while exploring a cave in the TN mountains. Any ideas as to what or if this is anything other than a rock would be appreciated

 

Amazon Forum Fav 👍

Family Maps of Hinds County, Mississippi, Deluxe Edition - Grab it through Amazon!

[RogueFlea]

Maybe calcite or quartz?

 

[Von12]

Do you see how it looks like it has layers? Should I chip it off or leave it how it is ? Bust it?

 

[DDancer]

Try a hardness test to see if its calcite or quartz. Looks like an agate to me. I wouldn't break it up any more, if you want to see the banding better I'd have it cut and polished on one side.