Help with stone/ball from liver flush identification (PIC)

I did a liver flush, it seems one of my most successful ones yet. I got some biggish looking stones that were bigger than normal (much) and were blackish. They seem too big to pass through my bile duct, and do not seem like Gallstones to me. I was wondering if someone could help identify. I put a pencil in the first pic to help with size.

 

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