Professional quality and moderately priced, this watercolor paint is for professional artists who incorporate texture into their paintings. Natural Black is a finely ground naturally occurring rock that is a pure black pigment. This watercolor is highly transparent and displays fine grained pigment with loose granulation and striations. Natural Black has excellent lightfastness. This paint maintains a considerable bias of color when diluted with water with granular presence in the final result. Natural Black is mined and ground in Alabama, USA and reflects the dark, rich hues of the natural earth. Colors of Nature presents its watercolor semi-moist paint in 10mL tubes.