Something like that.
I got a lot of light green little stones with some darker ones on my first flush.
My 2nd flush produced slightly bigger stones of the same quality.
My third flush was very interesting, I passed some harder dark brown, black and even one reddish stones. Again accompanied by some lighter green ones.
My fourth flush produced nothing. Perhaps 2-3 light green stones 3-4 mm long. After this I considered myself stone free.
Then I was flushing every two-three month and the results were more or less the same every time: emerald green stones all of the same consistence. No more other colours.
On my 7th and 13 flush I passed monsters, I still keep then in my freezer. A few emerald green stones 3-4 cm