is by far the most abundant group of minerals in the earth's crust, forming about 60% of terrestrial rocks. Most European deposits offer potassium as well as sodium feldspar and mixed feldspars. are primarily used in industrial applications for their alumina and alkali content.
The term encompasses a whole range of materials. Most of the products we use on a daily basis are made with feldspar: glass for drinking, glass for protection, glass wool for insulation, the floor tiles and shower basin in our bathroom, the tableware from which we eat, … is part of our daily life.
minerals are essential components in igneous, metamorphic and sedimentary rocks, to such an extent that the classification of a number of rocks is based on content. The mineralogical composition of most can be expressed in terms of the teary system Orthoclase (KAlSi3O8), Albite (NaAlSi3O8) and Anorthite (CaAl2Si2O8).
Chemically, the are silicates of aluminium, containing sodium, potassium, iron, calcium, or barium or combinations of these elements. The minerals of which the composition is comprised between Albite and Anorthite are known as the plagioclase feldspars, while those comprised between Albite and Ortho فلدسپات | Feldspar...
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برچسب : نویسنده : feldspar بازدید : 80 تاريخ : پنجشنبه 30 آذر 1396 ساعت: 23:18