What physical characteristics can heroin have?

Heroin can be found in various physical forms, most commonly as a white or brown powder. This powder is derived from morphine, which is extracted from the opium poppy plant. The white powder is typically the purest form, often processed for injection or inhalation, while the brown powder has impurities from the manufacturing process or may be mixed with other substances. The color and consistency can vary based on the specific manufacturing processes and the presence of additives, but white or brown powder remains the recognized and prevalent forms of heroin available on the illicit market.

While other forms may exist conceptually, such as liquids or crystalline substances, they are not the typical characteristics associated with heroin in user contexts or law enforcement scenarios.