Charcoal: burnt wood, once used along with earth pigments like ochre to adorn caves 20,000 years ago. Now mostly used for newsprint sketches of live models or as under-drawings for oil paintings. But Rox Corbett uses charcoal to create a warm and moody palette for texture, abstraction and realism. She makes tools that she rubs into charcoal sticks and then dry-paints the medium onto the paper. Charcoal pencils are used for the sharp edges, big charcoal sticks for the depths, and erasers to reverse the dark as one would in scratchboard.