you seem to knw ur shit but actually i beg to differ. there is afghani white heroin. the best powdered form heroin comes from colombia and afghanistan too. the brownish shitty kind could be from anywhere but is usually from mexico. black tar is mexican too. im not saying u r wrong. however im middle eastern and i tell u there is #4 afghani heroin. also IMO heroin form only differ when your snorting. snorting brown heroin never works and requires herculian amounts! snorting pure white heroin works like magic. however when u shoot that shit it doesnt matter, just dissolve it in citric instead of water and it hits u exactly like white heroin does, ofcourse u have to use a bit more. also, eventhough black tar is usually frowned upon, alot of users swear by it and would prefer using it over any powdered form, due to the fact that its a mixture of heroin related chemicals and has some what of a unique high.
just snorted chemically analized Diamorph that originated in afghan and was refined into #4 in turkey. 50mg has me feeling like an oc 80. and i got .45 grams left!