Hard gall stones

Has anyone passed hard gall stones? Was talking to a colleague at work about the Liver Flush and the green stones that came out. His mother has had her gall bladder removed and has her stones and he said that they were hard and not soft. Can you pass the hard ones through the flush or is it just the soft ones?

Also has anyone had an ultrasound after doing the flushes which showed that there were no longer gall stones in the gall bladder? Tweet