English dictionary
natrolite
Definitions, examples, synonyms and antonyms from WordNet 3.0.
noun
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a group of minerals of the zeolite family consisting of a hydrous silicate of sodium and aluminum
Source: WordNet 3.0
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A zeolite occuring in groups of glassy acicular crystals, and in masses which often have a radiated structure. It is a hydrous silicate of alumina and soda.
Source: webster1913