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REVISTA DE CHIMIE
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https://doi.org/10.37358/Rev.Chim.1949

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Revista de Chimie (Rev. Chim.), Year 2008, Volume 59, Issue 7,

https://doi.org/10.37358/RC.08.7.1883

Bogdan-Ion Mocanu, Nicolae Naum, Cristian Lungu, Dorin Bombos, Mihaela Bombos

Compositional Characteristics of Piatra -Verde Slanic Zeolitic Vulcanic Tuff

Abstract:

Using up-today analysis methods, this paper confirms existence like majority phase of the natural zeolite - clinoptilolite, to the prejudice of the heulandite, and proves the presence alongside of the clinoptilolite, an amount fine crystallizated silica in the Piatra-Verde Slanic zeolitic tuffs. This quantity of the fine crystallizated silica causes the appearance an „Hump effect” on the X-ray diffraction patterns in the range of the 15-35° (2q angles) and confers to this zeolitic tuff a very good pozzolanic reaction. Pozzolanic activity together with the good ionic exchange capacity could represent the premises of the complex utilizations of this clinoptilolitic tuff, such as nuclear decontamination of a contaminated with radionuclides streams and theirs safety stocking.
Keywords:
clinoptilolite; heulandite; fine crystallizated silica; pozzolanic reaction

Issue: 2008, Volume 59, Issue 7
Pages:
Publication date: 2008/8/9
https://doi.org/10.37358/RC.08.7.1883
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