A naturally bonded sand or a compounded molding sand mixture which has been tempered with water for use while still in the damp or wet condition.
Moist clay-bonded molding sand.
Natural sands combined with water and organic additives, such as clay, to proper consistency for creating molds. See Core, Molds, Natural Sand.
Green Sand is an aggregate of sand, bentonite clay, pulverized coal and water. Its principal use is in making molds for the casting of metals. The largest portion of the aggregate is always sand.