Which type of charcoal is ground to a powder and compressed into chalk-like sticks?

The type of charcoal that is ground to a powder and then compressed into chalk-like sticks is known as compressed charcoal. This form of charcoal is created by taking the powdered charcoal and compacting it, which results in a dense stick that produces a rich, dark line when used for drawing. The compression process allows for a more controlled application of the charcoal, making it favored by many artists for its versatility and ability to achieve both fine and bold strokes.

Other types of charcoal, such as stick charcoal, keep their original form and texture, typically producing a different quality of line. Powdered charcoal refers specifically to the loose form of charcoal, which is not in stick form and is typically used in different contexts such as for wash or mixed media techniques. Vine charcoal, made from carbonized willow or grapevine, is softer and produces lighter lines compared to compressed charcoal; it is valued for its easy blendability but does not have the same density or richness when applying it to paper.