#PhantomX Quartz is one of seven #slimegirl and is the brains of the group.She can be a little uptight and a know-it-all sometimes but she can be fun as well.She likes hanging out with Diamond as she always trys figured out her words of advice and find the answers to their meaning.They have a crystal in their forehead that makes their body smooth and not meltly-like and also allows their armor to become slime-like as well.They can expand their body to make themselves either bigger or smaller.