Were they clear, like transparent, or more like whitish? I ask because the last two out three times (flushes 10 & 11) I got out a total of 25-30 white (white clear through) stones from 1.5 - 2.5 cm. I talked to a lady in Canada where I ordered some Gold Coin Grass tincture and she said they were ????? (I couldn't catch the word she used as she had an accent I wasn't familiar with). I know this isn't very definitive, but at least you know other people are getting wierd colored stones too.
When I posted about this, one response said she had read somewhere that they were gallbladder stones which would certainly be great news, but I don't know for sure.