| Meaning | 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. |
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| Narrower | chabazite, chabasite | A group of minerals of the zeolite family consisting of a hydrous silicate of calcium and aluminum |
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| 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 |
| Broader | mineral | Solid homogeneous inorganic substances occurring in nature having a definite chemical composition |
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| 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 |
| Spanish | ceolita, zeolita |
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| Catalan | zeolita |
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