Rock 365 : Day 91 : Pseudolithite #365photos

Day 91 : I can’t believe we are a quarter of the way through the year
and this 365 project. To celebrate here is one of my favourite
samples, pseudolithite. It is the one I use to throw at students who
aren’t paying attention in lectures and at the TV when they start
spouting nonsense about frogs predicting earthquakes or some such.

[Update: This is the entry for April 1st.  The 'rock' is actually painted high density foam - the name pseudolithite literally means 'false rock]