All cocaine contains cocaine, which can only be pure because it can only be cocaine. Containing cocaine, this means you can extract the cocaine from the non-cocaine in cut shit. Freebase it, clean it as good as possible, dry it, add drops of diluted 1ml/10ml muriatic acid/distilled water (1ml of muriatic acid per gram of cocaine, NOT too much, be careful), and let it dry under a heat lamp. 100% Cocaine HCL is what you have.