- any of a group of hydrated silicates of aluminum with alkali metals, commonly occurring as secondary minerals in cavities in basic volcanic rocks: used for their molecular sieve properties because they undergo dehydration with little or no change in crystal structure.
Origin of zeolite
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Examples from the Web for zeolite
Upon the moss-clad slopes many fragments of quartz and zeolite were met with.In the Arctic Seas
Francis Leopold McClintock
It belongs to the Zeolite family, and is a hydrated silicate of lime and potash, containing also fluorine.
Stilbite, stil′bīt, n. a pearly and foliated variety of zeolite.
An amygdaloidal variety containing calcareous spar and zeolite occurs S. of Dudley.
- any of a large group of glassy secondary minerals consisting of hydrated aluminium silicates of calcium, sodium, or potassium: formed in cavities in lava flows and plutonic rocks
- any of a class of similar synthetic materials used in ion exchange and as selective absorbentsSee molecular sieve
c18: zeo-, from Greek zein to boil + -lite; from the swelling up that occurs under the blowpipe
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
- Any of a family of hydrous aluminum silicate minerals, whose molecules enclose cations of sodium, potassium, calcium, strontium, or barium. Zeolites are usually white or colorless, but they can also be red or yellow. They are characterized by their easy and reversible loss of water of hydration. They usually occur within cavities in basalt.
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