• WordNet 3.6
    • n natrolite a group of minerals of the zeolite family consisting of a hydrous silicate of sodium and aluminum
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Webster's Revised Unabridged Dictionary
    • n Natrolite (Min) 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.
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Century Dictionary and Cyclopedia
    • n natrolite A zeolitic mineral occurring in slender acicular crystals, also in masses with a fibrous and radiating structure, generally of a white color and transparent to translucent. It is a hydrous silicate of aluminium and sodium (whence the name), common in cavities in basalt and other similar igneous rocks, less 50 in granite and gneiss. Also called soda-mesotype and needle-zeolite.
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Chambers's Twentieth Century Dictionary
    • n Natrolite nat′ro-līt one of the most common of the group of minerals known as Zeolites.
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Webster's Revised Unabridged Dictionary
Natron, + -lite,: cf. F. natrolithe,


In literature:

This natrolite is a grouping of very small but perfect crystals, having the forms shown in Fig.
"Scientific American Supplement, No. 344, August 5, 1882" by Various