Definition:
(noun) - From the Latin "calx" (limestone) chalk is the mineral substance calcium carbonate (the main ingredient of limestone).
For creating art, chalk can be used in its initial, whitish form - either pressed into sticks or used as the white part of gesso. More commonly, when you hear tell of a chalk drawing its creator has used the type of chalk where pigment has been mixed with gum (arabic, not chewing) and pressed into a waxy-feeling, four-sided stick. These sticks are similar to pastels, but thinner, lighter, longer and, I assure you, maddeningly easily snapped in two if the artist is feeling any latent tension.
Pronunciation: chock
