India’s feldspar fortunes

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Published: Tuesday, 22 November 2011

Ajay Kulshreshtha reports on the feldspar industry of India and the country’s production hub, Rajasthan, discussing the outlook for key ceramic and glass consumers

Feldspars are aluminosilicates containing varying amounts of calcium, potassium, or sodium. In glassmaking, feldspar provides alumina for improving hardness, durability and resistance to chemical corrosion. In ceramics, feldspar is used as a flux, lowering the vitrifying temperature of a ceramic body during firing and forming a glassy phase. Glass and...

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