BBC filming with my favourite pet rock :-)

I recently did some filming for a new BBC series where I was brought back down to Earth by putting on my ‘geologist’ hat to chat volcanoes and holes in the ground (more details when it’s released). It sounds like an exciting programme though and I should appear in 2 separate episodes. I even got my favourite pet rock into the filming – a piece of Icelandic basalt if you must know – I hope he makes the cut!