Spectrum Infrared optical constants for Na-Al-silicate glass with Al(Al+Si)=0.33 Spectrum Infrared optical constants for Na-Al-silicate glass with Al(Al+Si)=0.25 Spectrum Infrared optical constants for Na-Al-silicate glass with Al(Al+Si)=0.20 Spectrum Infrared optical constants for Mg-Al-silicate glass with Al(Al+Si)=0.33 Spectrum Infrared optical constants for Mg-Al-silicate glass with Al(Al+Si)=0.25 Spectrum Infrared optical constants for Mg-Al-silicate glass with Al(Al+Si)=0.20 Spectrum Infrared optical constants for Mg-Al-silicate glass with Al(Al+Si)=0.10 Spectrum Infrared optical constants for Mg-Fe-Al-silicate glass with Al(Al+Si)=0.33 Spectrum Infrared optical constants for Mg-Fe-Al-silicate glass with Al(Al+Si)=0.25 Spectrum Infrared optical constants for Mg-Fe-Al-silicate glass with Al(Al+Si)=0.20 Spectrum Infrared optical constants for Mg-Fe-Al-silicate glass with Al(Al+Si)=0.10 Spectrum Infrared optical constants for Ca-Mg-Al-silicate glass with Al(Al+Si)=0.40 Spectrum Infrared optical constants for Ca-Al-silicate glass with Al(Al+Si)=0.67