chabazite


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chabazite

(ˈkæbəˌzaɪt)
n
(Minerals) a pink, white, or colourless zeolite mineral consisting of a hydrated silicate of calcium, sodium, potassium, and aluminium in hexagonal crystalline form. Formula: Ca2Al2Si4O12.6H2O
[C19: from French chabazie from Late Greek khabazios, erroneous for khalazios stone similar to a hailstone, from Greek khalazios of hail, from khalaza hailstone + -ite1]
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Noun1.chabazite - a group of minerals of the zeolite family consisting of a hydrous silicate of calcium and aluminum
zeolite - any of a family of glassy minerals analogous to feldspar containing hydrated aluminum silicates of calcium or sodium or potassium; formed in cavities in lava flows and in plutonic rocks
References in periodicals archive ?
Analcime was found in saline lakes and terrestrial sediments in warm, rather arid regions, frequently associated with phillipsite, chabazite and natrolite [19].
There are many species of zeolites, such as Analcime, Chabazite, Clinoptilolite, Faujasite, Ferrierite, Heulandite, Laumontite, Mordenite.
Copper Chabazite Selective Catalytic Reduction (SCR) Catalyst: converts nitrogen oxides into water and nitrogen using a urea-based solution.
The arsenic removal efficiency improvements with increasing temperature suggest the Fe modified activated carbon and chabazite could operate successfully as arsenic adsorbents from 23* to 35*C.
As can be seen also from the XRD patterns, a slow dissolution of the starting materials, revealed by a progressive reduction of the peak intensity, was accompanied by the appearance of very weak peaks of zeolite Na-Pl (GIS), chabazite (CHA) and Linde Type Y (LTY), which increased in crystallinity with reaction time, although with a large amount of amorphous aluminosilicate material when metakaolinite was used.
Geological Survey has reported natural zeolites' worldwide occurrence in the USA, Japan, Korea, Bulgaria, Czechoslovakia, Romania, Hungary, Russia, Yugoslavia, South Africa, Italy, Germany, Turkey and China, the latter having the greatest worldwide production Clinoptilolite, mordenite, heulandite, chabazite, phillipsite and laumontite are some of the more than 40 known natural zeolites occurring in reasonably high quantities and purity.
While appreciable phase changes were not observed in the specimens exposed to nitric acid attack, new peak of chabazite developed along with diminishing peaks of few other phases.
Significant mineral occurrences in the country's non-igneous and non-metamorphic rocks are uncommon, although beautiful celestine specimens come from sedimentary rocks (marls) near Majunga, and well-crystallized zeolites such as gmelinite, analcime and chabazite were found in volcanic rocks at some historical localities (Lacroix, 1922-23; Behier, 1960).
2009, Effect of Natural Ion Exchanger Chabazite for Remediation of Lead Toxicity: An Experimental Study in Teleost Fish Heteropneustes fossilis.
Among similar localities in the vicinity, the zeolite locality of Pusty vrch (Schie-chenberg) near Folknafe is characterized by the presence of thomsonite, chabazite, phillipsite and gismondine occurring in amygdales of a lava flow of "leucite" tephrite composition (Tucek 1962).
Massive veins within faults consist principally of chabazite.
These mineral species described are: Hornblende, Epidote, Piemontite, Chabazite, Prehnite, Pyrite, Chalcopyrite, Clinozoisite, Dravite var Tourmaline, Chlorite, Garnet var Almandine, Sulphur (as free crystals), Calcite, Kaolinite, Hyalite Opal.