If its pure RC powder its almost always white.. only pure substance ive seen in powder form and yellow is RC opiates like zenes, some of those are yellow.. Be careful!
yeah clonazolam is definitely yellow when pure, and thats how it always came back when it first got popular in the early 2010's so thats one example of a benzo not being white. also bromazolam is often tan despite being pure.
and as /u/TheBenzoLova mentioned, slight impurities can cause drastic color changes. for example I have seen test results of Heroin from vendors like Narco710 and more recently PartyFaves/321Snort with their Heroin (no fent or -zenes detected from any of the vendors mentioned and alll were above 90% pure from lab tests), but the color was often tan or greyish in color despite results being as high as over 95% pure from energy control. even though pharma grade heroin like 99.99%+ level puroity is always white/slightly off white, just a little less pure may change the color a good bit. so that's why i'm just on the fence about believing the potency, or if its even Alp. I can't decide unfortunately
This use to be a big debate back when /r/clonazolam was around. There was no definitive proof offered, simply people voting with their comments regarding whether yellow or white was the best quality clam.
We have seen the same thing with bromazolam with some saying pink is best and others preferring yellow.
I have been told by unreliable sources that it all depends upon the synthesis method and that color is not a good predictor of quality.
I mean shit, you can get cryal clear mdma or champagne or even darker amber, and for the most part the potency is prettty much going to be the same, so yeah i mean if its NOT alpraz, and they know it, why not just use a white powder instead to try to fak it so it seems more reliable?
so maybe I'll give it a shot andget some and report back on how it is.