Accidentally mixed crack with heroin. How can I separate the heroin?

[majordude]

I bought some street heroin and the guy gave me a free hit of crack, but I didn't know at the time and thought it was heroin. So I crushed it all up together, smoke some off foil wondering why it tastes like crack. Didn't find out till I started coming down, man what a piss off, I wanted to sleep. So how can I separate them? Could I quickly run a flame over top, burning the crack away and leaving the heroin, or would burning the heroin make it inactive?

 

[tremours]

If your planning to use the h right away you could disolve it in water and the crack should remain solid

 

[keeping]

if you've already melted them into beetles on the foil i'd say you're basically fucked mate soz