I was able to do my own assays, back in the day... For all I know, someone else may have already found it... What I have going for me, is that I know what I'm looking for... I know what it looks like... They'll probably see what I was seeing before I started to see... I was blind, when it came to that Heavy Brown Rock after 20 years... It was dipping it in Distilled White Vinegar that helped open my eyes...