black tar

a type of heroin produced in Mexico. it is the main type of heroin used in the Western United States. it may be sticky, like roofing tar, or hard. colors range from dark brown to black. the reason for its tar-like consistency and appearance is due to the crude manner in which it was processed. it is often sold in this state at purities ranging from 20-80%.
black tar heroin is usually injected or smoked, but can also be made into powder or dissolved in water and snorted. it is typically thought that while injecting black tar will destroy your veins faster than injecting china white, but the fact remains that its gummy consistency requires the needle to be rinsed thoroughly between uses, which may or may not put users at a lower risk of getting the package.
black tar can be made into mexican brown powder heroin by being cut with lactose, though other cutting agents have been used, of course.

A crudely refined form of heroin used mainly in the western united states due to its accessibility through the mexican border. Usually very hard but prone to break up much like sandstone, but becomes moist and very sticky when heated to around eighty degrees fahrenheit. Usually smoked off of tin foil but can be mixed with other smokables such as tobacco or weed. Can be injected but due to its gummy texture can cause immense damage to veins, not to mention diseases it is exposed to during its refining process. Smoking can cause mild shaking in the hands, itchiness, and unpredictable vomiting.

Heroin is an illegal drug processed from morphine, a natural opiate derived from specific varieties of poppy. Heroin is the single most abused opiate in the US, and has one of the most serious addiction rates of all illegal drugs
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Street heroin comes in a variety of forms. Most commonly on the west coast, it is sold on the street as a dusty brown to dark brown powder (if it is cut with lactose such as powdered milk)or sticky black substance known as black-tar heroin (which may be really hard to break)
Back in the day, the mexican cartels used cheap poor things to manufacture and cut it with, and now, we more commonly see more purer versions of it, as manufacturing procceses become better.

While using Black tar (or heroin in general)a sudden surge of intense pleasure known among heroin users as "the rush." the skin flushes and the arms and legs feel heavy. Dry mouth is common, and the heroin user may also experience nausea, vomiting or intense itchiness.

Once the rush ends, heroin abusers are drowsy for several hours. Users refer to this period of time as "Nodding out." Mental functioning is slow and disoriented. Heart function and breathing slows.

heroin is “cut” with other drugs or with substances such as sugar, starch, powdered milk, or quinine. Street heroin can also be cut with strychnine, fentanyl or other poisons. Because heroin abusers do not know the actual strength of the drug or its true contents, they are at risk of overdose or death

Black tar heroin is a form of heroin that is sticky like tar or hard like coal. Its dark color is the result of crude processing methods that leave behind impurities. Despite its name, black tar heroin can also be dark orange or dark brown in appearance. It is generally less expensive than other forms of heroin.
Black tar heroin is impure morphine diacetate.

an expensive good type of heroin

The dirtiest form of heroin. It is black and usually contains glass and other unwanted substances. It is extremely hazardous to your health and probably contains some form of brain damaging substance. It is much more harmful than regular heroin.

a black silky substance that when ingested makes you dizzy , and then you go insane