Sick of UNPURE hASh!!

Hi all,

I've been living in France for ever and the problem over here is that there's practically only hash and weed is a lot Rarer. the problem with the hash is that,even though I know the good sources where you get the good hash,(and it is good hash because this is were all the old tokers that have been toking for years get theres)you still will find that it's probably not 100 % pure.
And as stoned as i can get from it and even though the taste is nice I would like to find an Accurate method to judge the purity of the hash.
And please don't tell me to put a piece in a bowl of boiling water and if the water goes yellow then it's got impurities because even the purest hashish makes the water go slightly yellow.
You're probably all thinking :"why does he care if it gets him high?"
The answer to that is that i don't feel comfortable smoking something that has impurities in it and lately I've been getting kind of paranoid about smoking henna and camel shit.

Thanks and don't forget to smoke up :rastasmoke::rastasmoke::rastasmoke: