Congratulations!!! You are Obsidian! Part of the Igneous fam.

Obsidian rocks have an edgy side yet still maintain their figure and shape well. Similar to your grungy style, yet you still follow the rules. You often trick people into thinking you are a sort of rebel due to your grungy style, but you're a good kid at heart. Obsidian rocks deal with the same problem. Because they are black, they are associated with being a grungy "hipster", but they always behave just like you! The smooth, glossy texture of obsidians relates to your expert rule following, and its few structured ridges connect to your edgy grunge side. You guys are really cool and will make a great pair.