Thanks for the advice swampdragon, always good to be cautious.
Simon's went blue, and Robatest negative, so it would have to be PMMA.
I personally think the brown colour is just dilute black mixed with the original yellow of the mandelin though.
Decided to test a couple of pills I saved and trust, Nintendo(pez shaped dutch one) and blue Q-dance lite.
The results were the same, little dots of turquoise at the edges, never saw that with EZvials.
Wish we had access to free GCMS like Spain. I begrudge paying £40 to Ecstasydata for only Ratios.
Someone sent a Green Android to Edata crushed, Results were MDMA 6, Caffeine 1.
I think they added a known amount of caffeine(30mg maybe) to ascertain the MDMA content.