The Black Opal Cocktail / Drink is a strong drink. If you like the Long Island Iced Tea then you will probably like this. It has a sweeter and more fruity taste that will still knock you about like the Long Island Iced Tea. The Black Opal cocktail is an intriguing and delightful drink known for its dark, opalescent color and layered complexity of flavors. Its name is inspired by the gemstone, opal, a unique mineral that can shimmer in multiple colors, and in this case, black, signifying the drink's primary hue. Some aficionados describe the Black Opal as a darker, fruitier cousin to the famous Long Island Iced Tea. It perfectly marries the robustness of various spirits with the sweetness and tartness of a collection of mixers.