Cocaine is a powerfully addictive stimulant drug made from the leaves of the coca plant native to South America. It produces short-term euphoria, energy, and talkativeness in addition to potentially dangerous physical effects like raising heart rate and blood pressure.
The coca leaves are ground up in a outdoor laboratory and saturated with a chemical liquid, usually gasoline, that removes the Cocaine alkaloid crystals from the leaf. This produces a damp mud-like paste. The liquid mix if filtered and dried allowing the the cocaine crystals to appear as a paste.
Although there are 200 varieties of this plant, only two of them contain enough cocaine for refining. These two types are found in the mountains of South and Central America. This alkaloid is a very powerful stimulant and people used it for centuries before it became a popular high-end drug.