Seizure is a large-scale installation by British artist Roger Hiorns in which he used unexpected materials to transform an everyday room into a giant piece of art. To create the site-specific installation, Hiorns covered the surface of the interior with plastic sheeting. He then poured more than 20,000 gallons of boiling copper sulphate solution into the abandoned space and let the liquid cool for three weeks. As the liquid cooled, these strange blue crystalline growths began to form, covering the walls, the floors, and the ceiling. The remaining liquid was drained and sent out for special chemical recycling.