the bile stones only turned red when he left the stones in the sunlight, causing them to melt and become porous.
flawed test.
the test was good right up until he decided to try melting in sunlight.
a better test, which has already been done numerous times is using a different oil like coconut or flax, one of which is pure translucent when liquid and the other is golden colored. neither are green.
yet the stones still come out green.
some olive oil is yellow and not green, yet stones come out red, black, or deep green.