The color of mud on alkaline lands, found in dry climates of desert and Mediterranean areas which, due to their sandy nature, easily absorb the humidity.
Color of grayish mud, native to urban environment where the presence of human activity, industrial construction and decay, has caused this particular shade of sludge.
A dark brown color most commonly observed in central European terrain and humid areas of the Mediterranean countries. Most non alkaline grounds present this color. It comes in 40ml bottles.