I recently was attempting to mix a lower grade black tar heroin with a much more potent grade of black tar heroin. Approximately 7 grams of each totaling near and half an ounce I added water in a pyrex dish on the stove top over low heat. Attempting to combine the two to create a single homogeneous blend of the two but I accidentally left the heroin slightly dissolved in water on the stove top on low-medium heat only to return 30 minutes later to a hard charred mass in the pyrex. Is the active heroin compromised? Is there a way to recover or even return to previous 'tar' state?