Conté, also known as Conté sticks or crayons, are a drawing medium composed of compressed powdered graphite or charcoal mixed with a wax or clay base, square in cross-section. They were invented in 1795 by Nicolas-Jacques Conté, who created the combination of clay and graphite in response to the shortage of graphite caused by the Napoleonic Wars. Conté crayons had the advantage of being cost-effective to produce, and easy to manufacture in controlled grades of hardness.
They are now "manufactured using natural pigments (iron oxides, carbon black, titanium dioxide), clay (kaolin) and a binder (cellulose ether)." [1]
Conté crayons are most commonly found in black, white, and sanguine tones, as well as bistre, shades of grey, and other colors. They are frequently used on rough paper that holds pigment grains well. They can also be used on prepared primed canvases for underdrawing for a painting. The sticks' square profile make Conté crayons more suitable for detailed hatched work as opposed to the bolder painterly drawing style demanded by soft pastels.
