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Chemical Treatment Effects of Blue, Yellow and Green Colors with Heating Methods on Agates of Cheshme Shoor Area, Qom, Iran

引用

Journal of Minerals and Materials Characterization and Engineering 2016年第3期4卷 210-217页

作者： Mohammad Yazdi reyhane lotfi Fariborz Masoudi Niloofar Musavi Pak Department of Geology Shahid Beheshti University Tehran Iran Incubation Center Shahid Beheshti University Tehran Iran

The Cheshme Shoor area is located in northeast of Qom which is a part of central Iran geo-structural zone. The rocks of the area are mainly volcanic rocks that include Eocene acidic tuffs and ignimbrites. Different types of agate, jasper and amethyst formed as secondary cavity filling deposits in variety of colors and shapes in the area. In this paper, chemical treatments by different chemicals with heating methods in 15 different procedures have been conducted on one agate sample of the study area which has been divided into smaller pieces by milling. Dyeing with these methods has been done in blue, yellow and green colors. Excellent results have been achieved in 9 processes, significant but not expected results have been illustrated in 4 processes and 2 processes have been represented no changes. Produced colors have had a natural and light color which makes them more desirable to the consumers but totally these dyeing processes illustrate that concentration of the solution is effective in coloring and solutions with more concentrations produce stronger color.

关键词： Treatment Agate Volcanic Rocks Cheshme Shoor Qom

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