While Queenslanders are renowned for being resilient and loyal, the rocks of Brisbane are known for their own unique kind of tuff.
The volcanic rock is easily seen at the Kangaroo Point cliffs and is littered throughout the city in constructions including churches, building facades and retaining walls.
Queensland Museum geologist Andrew Rozefelds said the tuff was formed more than 226 million years ago.
“Tuff is a type of rock formed by the compaction of volcanic ash and the Brisbane tuff also includes evidence of pyroclastic flows, as well.”
He said the flows of high energy masses of rock fragments were then deposited at the same time as the ash fell.