Here is one of the many interesting features that can be found atop Mount Wellington.
Yes, more rocks.
I am reasonably certain that these rocks are Dolerite, which is an intrusive igneous rock. If my hazy memory of Year Eight science is anything to go by, igneous rock is formed by magma (or molten rock) being cooled and becoming solid. Thus, at some point things must have been a little hot 'n hairy up here on Mount Wellington!
On that, there was a guy in my Year Eight science class who wasn't allowed to sit in on lessons that talked Geology (or Biology for that matter). He belonged to that