zeolite

Noun
  1. 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 (synset 115131434)
    is a type of:
    • 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
    subtypes:
    • 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
    • phillipsite - a group of white or reddish crystalline minerals of the zeolite family consisting of a hydrous silicate of calcium and potassium and aluminum

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