Characterization of Yemeni Natural Zeolite (Al-Ahyuq Area) and its Environment Applications: A Review
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Engineering Research Center of Nano-Geomaterial of Education Ministry, China University of Geosciences, Wuhan 430074, PR China.
Geological Survey and Mineral Resources Board, Ministry of Oil and Minerals, Sana’a, Yemen.
School of Environmental and Chemical Engineering, Foshan University, Foshan, Guangdong 528000, China
College of Engineering, University of Basrah, Basrah, Iraq
School of Environmental Stuides, China University of Geosciences (Wuhan), Wuhan 430074, China.
Publication date: 2019-04-01
Corresponding author
Ammar Salman Dawood   

College of Engineering, University of Basrah, Basrah, Iraq
J. Ecol. Eng. 2019; 20(4):157-166
This research characterizes a natural zeolitic-rich tuff from Yemen (Al-Ahyuq area) and its potential in environmental applications. A total of 40 zeolite samples of Al-Ahyuq area were selected and fully characterized by a variety technique to obtain the mineralogical and physicochemical parameters. Our results show that the purities of zeolite minerals range from 78 to ~100% zeolite. Clinoptilolite and mordenite are the major mineral zeolite whereas heulandite and stilbite occur in minor amounts present in the zeolite deposit. Accessory minerals include quartz, illite, mica, feldspar, kaolinite, and smectite. In addition, the chemical compositions of Al-Ahyuq zeolitic tuffs are found to be comparable with other zeolites compositions of high economic value in the world. Moreover, its environment application was also discussed in this paper.
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