A billion years in the past, as one tectonic plate ripped aside from one other, two chambers of magma have been sealed off beneath what would later change into Greenland. As 1000’s of years handed, the magma cooled, every layer crystallising beneath rarefied circumstances. At this time the Ilimaussaq intrusion is a big fold of rock beneath Gardar, in south-west Greenland. By a stroke of luck, it’s residence to 30 of the world’s most desired uncooked supplies.