Pseudofossils - 12 Apostles, Victoria

I spotted some beautiful faux fossils in the sandy-limestone used to make the underpass at the 12 Apostles while I was there with the JMSS geology class a month ago. These dendritic patterns are formed by the deposition of minerals by hydrothermal fluids. They are often mistaken for plant fossils by the geologically-uneducated. Still, they're quite pretty.

 

Sandy-limestone? in the underpass at the 12 Apostles, Victoria.