Cocaine in its purest form is an off-white or pink chunky product. Cocaine appearing in powder form is a salt, typically cocaine hydrochloride; however, cocaine is frequently adulterated or “cut” with various powdery fillers to increase its volume. The substances most commonly used to dilute cocaine are baking soda, sugars, such as lactose, inositol, and mannitol, and local anesthetics, such as lidocaine. This form of cocaine is often a white or off-white powder.
The color of “crack” cocaine depends on several factors including the origin of the cocaine used, the method of preparation (with ammonia or sodium bicarbonate), and the presence of impurities, but will generally range from a light brown to a pale brown. While these factors also affect its texture, “crack” cocaine takes on a range from a crumbly texture to a hard, almost crystalline nature, going from light to dark respectively.10