i'm not skilled in making oil, nor have i ever extracted it. that being said, i have smoked plenty of good BHO and I wouldn't say that this oil was completely see-thru, it just was a lot more clear than most BHO I have seen, and kicked my ass a lot harder. i personally was not there when it was being made, but the person (a friend of a friend) who gave it to us was not fucking around (phd, lab acces, etc.), and it was some of the best oil i have ever smoked.
the only reason i posted about it on here was to see if anyone of you experts had any insight on the matter. i have heard that liquid oxygen is used in the manufacturing of extracts (legal, over the counter herbal extracts) so it makes sense to a degree.