Can Stones from Biliary Tract and/or Pancreas Be Passed?

[Guest guest]

I know this question is kind of an odd one....but there have been

two instances where when I have gone to flush the toilet after

urination, I have noticed some small " crystal-like " (almost like

pieces of glass or sand) in the toilet bowl. I have a black toilet

so it shows up at the bottom of the bowl. Can stones coming from

the biliary tract and/or pancreas be passed thru urination? Also,

and I'm pretty sure I know the answer to this one already but I'm

going to ask anyway. Sometimes when I urinate I notice almost like

an oil slick in the water in the toilet....this happens on number 2

as well.

I would appreciate any answer to this I can get. Should I be

telling my doc about this?

thanks