process of producing feldspar for ceramic industries

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• published: 30 Sep 2012
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Feldspar:http://solution.mineralsprocessingplant.com/ Virginia Department of Mines, Minerals and Energy:http://solution.mineralsprocessingplant.com/ Feldspar Crusher,Feldspar Grinding Machine,Feldspar Crushing Machine,Mining Equipment:http://solution.mineralsprocessingplant.com/ Gilmer, A. K., Enomoto, C. B., Lovett, J. A., and Spears, D. B., , Mineral and fossil fuel production in Virginia (-): Virginia Division of Mineral Resources Open-File Report 05-04, 77 p. The minerals of which theposition isprised between Albite and Anorthite are known as the plagioclase feldspars, while thoseprised between Albite and Orthoclase are called the alkali feldspars due to the presence of alkali metals sodium and potassium. The alkali feldspars are of particular interest in terms of industrial use of feldspars.  Amongst the numerous rocks in which they are present, feldspars are particularly abundant in igneous rocks like granite, which contains up to 50% or 70% of alkaline feldspar. Historically, feldspar in Virginia was mined for use in the ceramics industry, for abrasives, and for gemstones (amazonite) (Pegau, ).  Prior to , according to Watson () feldspar was mined primarily in connection with mica mining. It was mined by open pit method predominantly from pegmatite deposits in Bedford, Prince Edward, and Amelia Counties in the early part of the twentieth century.  Feldspar is by far the most abundant group of minerals in the earth's crust, forming about 60% of terrestrial rocks.  Most deposits offer sodium feldspar as well as potassium feldspar and mixed feldspars.  Feldspars are primarily used in industrial applications for their alumina and alkali content.  The term feldspar epasses 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, fiberglass for insulation, the floor tiles and shower basins in our bathrooms, and the tableware from which we eat.  Feldspar is part of our daily life. Feldspar minerals are essentialponents in igneous, metamorphic and sedimentary rocks, to such an extent that the classification of a number of rocks is based upon feldspar content.  The mineral