thanks for the interesting news about the lab result.
However, from what you say I am inclined to say that the lab simply put the stones under a microscope and judged their structure. They missed the cristalline structure typical for gall stones or liver stones .
It is for me not quite clear whether this lab also perfomed a chemical analyses, because you mentioned only your stones were made of an "oily substance".
Cholesterol - the main compound of gall stones from the liver - is also an "oily substance".
Today, I performed Liver-Flush 22. No stones, nothing. Liver-Flush number 12 in contrast, produced 2.400 stones of a very dark colour and later flushes yielded semi calcified stones. Not a hard as a stone from the garden but hard enough not to be divided without using a knife.
I am tense to hearing more of the method used by you lab.