A new rock discovery in the United Kingdom may turn the science of petrology on its head. Scientists are baffled, experts befuddled and the public bewildered. Despite and because of this hysteria, I hereby present the first petrographic description of chocolite.

It’s a new episode of the podClast! In episode 7 we discuss really old sponge biomarkers in rocks from Oman, Palaeomagnatism, geology on Google Earth and more. This is the first episode in 7 months and it’s the longest podClast ever, so put down you rock hammer, lift a glass of something cold and listen to the banter of the geoblogosphere.