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...