Can anyone help identify these two rocks?

[nickirows]

Hello! I used to collect rocks when I was young in Florida and I'm having trouble identifying these two! They're both smooth to the touch. I've taken a picture of both sides, with and without flash. Thanks for any help!

 

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[DDancer]

Appear to be serpentine and or onyx. Would need to know the harness. Polished up nice, did you find them that way?