Not if stones are colored by bile

Color itself is not the proof of consistency.
The problem here is: bile is GREEN!

Bile is green, so it could color any oil green. No mater what the color of oil is, most oils are enough transparent that green bile will color them green.


So, the only way to proove that green stones are not composed of oil, is by mixing oil with some oil soluble dye, the best would be if dye is red, or black, or white or any color far from green.

If you do the flush with red oil, and you still get green stones with no sign of dye inside the stone, then you have the definitive proof that stones are not composed of oil.

Sorry, you will have to present better proof to convince me :-)

Spirit