I can definitely tell you that those stones are not from the OO. First of all, many people here have used other oils with the same results.
I myself have never done a liver cleanse before, but listen to this:
One time after I did a coffee enema I found that I had passed four pea sized things that looked exactly like the green stones described on this forum. I looked inside them and sure enough that soft jade green everyone talks about. They were whitish green on the outside.
Yes, so I guess I am "full of them". I will do my first Liver Flush this weekend.