zeolite -
any of a family of glassy minerals analogous to feldspar containing hydrated aluminum silicates of calcium or sodium or potassium; formed in cavities in lava flows and in plutonic rocks
mineral solid homogeneous inorganic substances occurring in nature having a definite chemical composition
water softener a substance (such as sodium chloride) that lessens the hardness of water by replacing calcium and magnesium ions with sodium ions and so gives the water more efficient sudsing power
chabasite,
chabazite a group of minerals of the zeolite family consisting of a hydrous silicate of calcium and aluminum
heulandite a group of minerals of the zeolite family consisting of a hydrous aluminum silicate of sodium and calcium
natrolite a group of minerals of the zeolite family consisting of a hydrous silicate of sodium and aluminum
