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Feldspar / Potash Feldspar
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Feldspar / Potash Feldspar

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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 encompasses a whole range of materials. Most of the products we use on a daily basis are made with feldspar:
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Nupur International

Ahmedabad, Gujarat
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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 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, 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 essential components in igneous, metamorphic and sedimentary rocks, to such an extent that the classification of a number of rocks is based upon feldspar content.  The mineralogical composition of most feldspars can be expressed in terms of the ternary system Orthoclase (KAlSi3O8), Albite (NaAlSi3O8) and Anorthite (CaAl2Si2O8).  Chemically, the feldspars 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 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.

Granite, however, rarely is used for its feldspatic content.  Rather, a whole range of rocks geologically connected to granite are used.  Most often, commercial feldspar is mined from pegmatite or feldspathic sand deposits.  Aplite, which is a fine-grained igneous rock with the same mineralogical composition as granite, also is mined frequently for its feldspar content.

Basically, the two properties which make feldspars useful for downstream industries are their alkali and alumina content.  On those elements we can distinguish three families: Feldspathic sand, Pegmatite and Feldspar.  A further distinction can be made between sodium, potassium and mixed feldspars, depending on the type of alkali they contain.  Feldspars play an important role as fluxing agents in ceramics and glass applications, and also are used as functional fillers in the paint, plastic, rubber and adhesive industries.


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Feldspar / Potash Feldspar

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About the Company

Year of Establishment1980
Nature of BusinessExporter
Number of Employees101 to 500 People
Annual TurnoverRs. 10 - 25 Crore
IndiaMART Member SinceMar 2006
Manufacturer and exporter of bauxite, salt, bentonite, feldspar, china clay, bauxite caustic soda, silica sand, ramming mass, quartz, talc powder, detergents garnet sand and pebbles.
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