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zeolite




Any of a group of hydrated aluminosilicate minerals, mostly found in volcanic rocks and hydrothermal veins. Zeolites are variable in form and light, with an open-framework structure which permits their use as "molecular sieves" and for ion exchange (especially for softening hard water). They undergo reversible dehydration.


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   • GEOLOGY AND PLANETARY SCIENCE
   • INORGANIC CHEMISTRY