IS 9749 (2007): Potash feldspar and soda feldspar for glass and .. feldspar for glass and ceramic industry - Specification [CHD 9: Ceramicware] . requirements of potash feldspar for glass and ceramic industry. But as soda.spectification of feldspar in glass,Feldspar, aluminium and silica - LKAB MineralsThe alumina content of sodium feldspar is over 19%; this provides the glass with impact and thermal shock resistance. Feldspar as a fluxing agent enables the.
spectification of feldspar in glass