The distribution of elements in the alteration of feldspatic minerals

Feldspar (alkali feldspar and plagioclases) in recent years feldspathoid minerals are used as raw materials the ceramic-glass industries. The igneous rocks such granite, syenite foid which mainly contain these have potential to be materials. Some inclusions within feldspatic affect extremely negatively desired values for material. In this study, effective processes alteration of Özvatan syenites, effects material were evaluated elements released by on environment revealed. syenites consist nepheline, orthoclase, plagioclase, cancrinite, sodalite, amphibole, biotite, pyroxene, melanite with a rare amount sphene, zircon, apatite fluorite. contents sericite kaolinite, formed result an rocks, increase direct proportion degree. As index values, samples show low degreed decomposed property. According calculated mobility (MI) from chemical analyses, there is quantitative decrease major oxides SiO 2 , Al O 3 Na O, K CaO Fe syenites. accordance all data, been exposed both weathering hydrothermal effect observed more frequently altered rock. While excess diaclase structures rock provides ease operation, other hand, it accelerated processes.