Mama
I passed only white stones for my first 8 flushes. Ater about the 4th flush I took some 'stones' to my doc to be analysed.
The first report read that they were cholesterol. A second sample was sent about 2 weeks later from a subsequent flush and the report came back as 'triglycerides'.
On the 8th flush I again passed mostly white stones for most of the day then late in the afternoon they changed to *very* dark green (every flush since they have been various shades of green).
It appears that my ducts were clogged up with cholesterol and I needed to get rid of it before I could pass the bile stones.
Possibly this is what is happening with you too?