Spectrum NIR bidirectional reflection spectrum (i=0°/e=30°) of Smectite SWy-2 with 1.44% adsorbed-interlayer H2O at -30°C, P(H2O) = 0 mbar Spectrum NIR bidirectional reflection spectrum (i=0°/e=30°) of Smectite SWy-2 with 1.53% adsorbed-interlayer H2O at -30°C, P(H2O) = 5.1 10-4 mbar Spectrum NIR bidirectional reflection spectrum (i=0°/e=30°) of Smectite SWy-2 with 1.61% adsorbed-interlayer H2O at -30°C, P(H2O) = 2.9 10-3 mbar Spectrum NIR bidirectional reflection spectrum (i=0°/e=30°) of Smectite SWy-2 with 1.69% adsorbed-interlayer H2O at -30°C, P(H2O) = 4.2 10-3 mbar Spectrum NIR bidirectional reflection spectrum (i=0°/e=30°) of Smectite SWy-2 with 1.81% adsorbed-interlayer H2O at -30°C, P(H2O) = 1.48 10-2 mbar Spectrum NIR bidirectional reflection spectrum (i=0°/e=30°) of Smectite SWy-2 with 1.94% adsorbed-interlayer H2O at -30°C, P(H2O) = 2.45 10-2 mbar Spectrum NIR bidirectional reflection spectrum (i=0°/e=30°) of Smectite SWy-2 with 2.29% adsorbed-interlayer H2O at -30°C, P(H2O) = 4.04 10-2 mbar Spectrum NIR bidirectional reflection spectrum (i=0°/e=30°) of Smectite SWy-2 with 2.45% adsorbed-interlayer H2O at -30°C, P(H2O) = 5.96 10-2 mbar Spectrum NIR bidirectional reflection spectrum (i=0°/e=30°) of Smectite SWy-2 with 3.00% adsorbed-interlayer H2O at -30°C, P(H2O) = 9.2 10-2 mbar Spectrum NIR bidirectional reflection spectrum (i=0°/e=30°) of Smectite SWy-2 with 3.39% adsorbed-interlayer H2O at -30°C, P(H2O) = 0.116 mbar Spectrum NIR bidirectional reflection spectrum (i=0°/e=30°) of Smectite SWy-2 with 3.32% adsorbed-interlayer H2O at -30°C, P(H2O) = 0.105 mbar Spectrum NIR bidirectional reflection spectrum (i=0°/e=30°) of Smectite SWy-2 with 3.72% adsorbed-interlayer H2O at -30°C, P(H2O) = 0.135 mbar Spectrum NIR bidirectional reflection spectrum (i=0°/e=30°) of Smectite SWy-2 with 4.56% adsorbed-interlayer H2O at -30°C, P(H2O) = 0.165 mbar Spectrum NIR bidirectional reflection spectrum (i=0°/e=30°) of Smectite SWy-2 with 6.03% adsorbed-interlayer H2O at -30°C, P(H2O) = 0.215 mbar Spectrum NIR bidirectional reflection spectrum (i=0°/e=30°) of Smectite SWy-2 with 7.76% adsorbed-interlayer H2O at -30°C, P(H2O) = 0.151 mbar Spectrum NIR bidirectional reflection spectrum (i=0°/e=30°) of Smectite SWy-2 with 7.67% adsorbed-interlayer H2O at -30°C, P(H2O) = 0.252 mbar

Spectrum NIR bidirectional reflection spectrum (i=0°/e=30°) of Smectite SWy-2 with 5.82% adsorbed-interlayer H2O at -30°C, P(H2O) = 0.166 mbar Spectrum NIR bidirectional reflection spectrum (i=0°/e=30°) of Smectite SWy-2 with 3.85% adsorbed-interlayer H2O at -30°C, P(H2O) = 8.6 10-2 mbar Spectrum NIR bidirectional reflection spectrum (i=0°/e=30°) of Smectite SWy-2 with 2.73% adsorbed-interlayer H2O at -30°C, P(H2O) = 1.4 10-2 mbar Spectrum NIR bidirectional reflection spectrum (i=0°/e=30°) of Smectite SWy-2 with 1.94% adsorbed-interlayer H2O at -30°C, P(H2O) = 1.2 10-3 mbar Spectrum NIR bidirectional reflection spectrum (i=0°/e=30°) of Smectite SWy-2 with 1.74% adsorbed-interlayer H2O at -30°C, P(H2O) = 3.0 10-4 mbar