| 释义 |
ze·o·lite
\ˈzēəˌlīt\ noun
(-s)
Etymology: Swedish zeolit, from Greek zein to boil + -o- + Swedish -lit -lite, from French -lite; from their intumescence under the blowpipe — more at yeast
1. : any of a family of hydrous silicates that include several groups (as the monoclinic phillipsite group, the rhombohedral chabazite group, the monoclinic natrolite group, and the monoclinic heulandite group) as well as minerals not yet classified, that are analogous in composition to the feldspars with aluminum, sodium, potassium, and calcium as their chief metals, that occur as secondary minerals in cavities of lavas (as amygdaloidal basalt) and less frequently in granite and gneiss, and that have the capacity to act as cation exchangers or as molecular sieves (hardness usually 3.5-5.5, specific gravity 2.0-2.4)
2. : any of various silicates that are processed natural materials (as glauconite or greensand) or synthetic granular sodium aluminum silicates used in water softening and as adsorbents
• ze·o·lit·ic \| ̷ ̷ ̷ ̷|lid.ik\ adjective |